He drives carelessly so he will have serious accident -> if
86. Jim/ have/ serious/ car/ accident/ last/ month/ ; / however/ , / he/ recover/ quickly/.
A. Jim had a serious car accident; however, he recovered quickly. 86….
B. Jim have a serious car accident; however, he recovered quickly.
C. Jim has a serious car accident; however, he recovered quickly.
D. Jim having a serious car accident; however, he recovered quickly.
87. My father and I/ not/ use to/ spend/ time/ with/ each other/. 87…
A. My father and I do not use to spend time with each other.
B. My father and I did not used to spend time with each other.
C. My father and I did not use to spend time with each other.
D. My father and I don’t not use to spend time with each other.
88. This time / next week / I / be / enjoy / summer holiday / beach/. 88…
A. This time next week I will be enjoy my summer holiday on beach.
B. This time next week I will be enjoying my summer holiday on beach.
C. This time next week I will be enjoyed my summer holiday on beach.
D. This time next week I will be enjoys my summer holiday on beach.
89. The quality / public transport/ services / Vietnam / should / improve /. 89…
A. The quality of public transport services in Vietnam should been improved.
B. The quality of public transport services in Vietnam should being improved.
C. The quality of public transport services in Vietnam should was improved.
D. The quality of public transport services in Vietnam should be improved.
90. Many countries /already using /solar energy. 90…
A. Many countries is already using solar energy.
B. Many countries was already using solar energy.
C. Many countries are already using solar energy.
D. Many countries were already using solar energy.
II/ Choose A, B, C or D the sentence that has the same meaning as the first.
91. As soon as I receive my result, I will phone you. 91…
A. I will ring you the moment I receive my result.
B. Sooner or later after I receive my result, I will give you a ring.
C. After receiving my result, I will call you.
D. I will make a phone call to you when I get my result.
92. When I was a young girl, chocolate was one of my favourites. 92….
A. When very young, I like eating chocolate cakes.
B. Chocolate used to be a favorite of mine when I was a young girl.
C. My favourite was chocolate as was a little a girl.
D. Being a little girl, I like chocolate.
93. I haven't seen my aunt for years. 93…
A. I haven't meet my aunt for long ago.
B. The last time I met my aunt was since years ago.
C. I last saw my aunt years ago.
D. I didn't see my aunt years ago.
94. They will use solar energy to protect the environment. 94…
A. Solar energy will be used for protect the environment.
B. Solar energy will be use to protect the environment.
C. Solar energy will be used to protect the environment.
D. Solar energy will used to protect the environment.
95. Although she eats lots of food, she is still very slim. 95…
A. In spite of eating lots of food, she is still very slim.
B. In spite of eat lots of food, she is still very slim.
C. In spite of eating lot of food, she is still very slim.
D. In spite of eating lots for food, she is still very slim.
96. What is the distance between Hanoi and HCM city? 96….
A. How far it is from Hanoi to HCM city?
B. How far is it from Hanoi to HCM city?
C. How far is its from Hanoi to HCM city?
D. How far is it’s from Hanoi to HCM city?
97. Although she is so young, she sings beautifully (age) 97…
A. In spite of hers young age, she sings beautifully.
B. In spite of her young ages, she sings beautifully.
C. In spite of she young age, she sings beautifully.
D. In spite of her young age, she sings beautifully.
98. I find English interesting. 98….
A.I am interested on English.
B.I am interested in English.
C.I am interested at English.
D.I am interested of English.
99. Our roof will be fixed tomorrow. 99…
A. They will has their roof fixed tomorrow.
B. They will had their roof fixed tomorrow.
C. They will have their roof fixed tomorrow.
D. They will having their roof fixed tomorrow.
100. They will show flying cars to the public when they finish it. 100…
A. Flying cars will be shown to the public when finished.
B. Flying cars will be show to the public when finished.
C. Flying cars will being shown to the public when finished.
D. Flying cars will be showing to the public when finished.
Hơi nhiều ạ nhưng mong mn giúp mình nha
86. Jim/ have/ serious/ car/ accident/ last/ month/ ; / however/ , / he/ recover/ quickly/.
A. Jim had a serious car accident; however, he recovered quickly. 86….
B. Jim have a serious car accident; however, he recovered quickly.
C. Jim has a serious car accident; however, he recovered quickly.
D. Jim having a serious car accident; however, he recovered quickly.
87. My father and I/ not/ use to/ spend/ time/ with/ each other/. 87…
A. My father and I do not use to spend time with each other.
B. My father and I did not used to spend time with each other.
C. My father and I did not use to spend time with each other.
D. My father and I don’t not use to spend time with each other.
88. This time / next week / I / be / enjoy / summer holiday / beach/. 88…
A. This time next week I will be enjoy my summer holiday on beach.
B. This time next week I will be enjoying my summer holiday on beach.
C. This time next week I will be enjoyed my summer holiday on beach.
D. This time next week I will be enjoys my summer holiday on beach.
89. The quality / public transport/ services / Vietnam / should / improve /. 89…
A. The quality of public transport services in Vietnam should been improved.
B. The quality of public transport services in Vietnam should being improved.
C. The quality of public transport services in Vietnam should was improved.
D. The quality of public transport services in Vietnam should be improved.
90. Many countries /already using /solar energy. 90…
A. Many countries is already using solar energy.
B. Many countries was already using solar energy.
C. Many countries are already using solar energy.
D. Many countries were already using solar energy.
II/ Choose A, B, C or D the sentence that has the same meaning as the first.
91. As soon as I receive my result, I will phone you. 91…
A. I will ring you the moment I receive my result.
B. Sooner or later after I receive my result, I will give you a ring.
C. After receiving my result, I will call you.
D. I will make a phone call to you when I get my result.
92. When I was a young girl, chocolate was one of my favourites. 92….
A. When very young, I like eating chocolate cakes.
B. Chocolate used to be a favorite of mine when I was a young girl.
C. My favourite was chocolate as was a little a girl.
D. Being a little girl, I like chocolate.
93. I haven't seen my aunt for years. 93…
A. I haven't meet my aunt for long ago.
B. The last time I met my aunt was since years ago.
C. I last saw my aunt years ago.
D. I didn't see my aunt years ago.
94. They will use solar energy to protect the environment. 94…
A. Solar energy will be used for protect the environment.
B. Solar energy will be use to protect the environment.
C. Solar energy will be used to protect the environment.
D. Solar energy will used to protect the environment.
95. Although she eats lots of food, she is still very slim. 95…
A. In spite of eating lots of food, she is still very slim.
B. In spite of eat lots of food, she is still very slim.
C. In spite of eating lot of food, she is still very slim.
D. In spite of eating lots for food, she is still very slim.
96. What is the distance between Hanoi and HCM city? 96….
A. How far it is from Hanoi to HCM city?
B. How far is it from Hanoi to HCM city?
C. How far is its from Hanoi to HCM city?
D. How far is it’s from Hanoi to HCM city?
97. Although she is so young, she sings beautifully (age) 97…
A. In spite of hers young age, she sings beautifully.
B. In spite of her young ages, she sings beautifully.
C. In spite of she young age, she sings beautifully.
D. In spite of her young age, she sings beautifully.
98. I find English interesting. 98….
A.I am interested on English.
B.I am interested in English.
C.I am interested at English.
D.I am interested of English.
99. Our roof will be fixed tomorrow. 99…
A. They will has their roof fixed tomorrow.
B. They will had their roof fixed tomorrow.
C. They will have their roof fixed tomorrow.
D. They will having their roof fixed tomorrow.
100. They will show flying cars to the public when they finish it. 100…
A. Flying cars will be shown to the public when finished.
B. Flying cars will be show to the public when finished.
C. Flying cars will being shown to the public when finished.
D. Flying cars will be showing to the public when finished.
Hơi nhiều ạ nhưng mong mn giúp mình nha
86. Jim/ have/ serious/ car/ accident/ last/ month/ ; / however/ , / he/ recover/ quickly/.
A. Jim had a serious car accident; however, he recovered quickly. 86….
B. Jim have a serious car accident; however, he recovered quickly.
C. Jim has a serious car accident; however, he recovered quickly.
D. Jim having a serious car accident; however, he recovered quickly.
87. My father and I/ not/ use to/ spend/ time/ with/ each other/. 87…
A. My father and I do not use to spend time with each other.
B. My father and I did not used to spend time with each other.
C. My father and I did not use to spend time with each other.
D. My father and I don’t not use to spend time with each other.
88. This time / next week / I / be / enjoy / summer holiday / beach/. 88…
A. This time next week I will be enjoy my summer holiday on beach.
B. This time next week I will be enjoying my summer holiday on beach.
C. This time next week I will be enjoyed my summer holiday on beach.
D. This time next week I will be enjoys my summer holiday on beach.
89. The quality / public transport/ services / Vietnam / should / improve /. 89…
A. The quality of public transport services in Vietnam should been improved.
B. The quality of public transport services in Vietnam should being improved.
C. The quality of public transport services in Vietnam should was improved.
D. The quality of public transport services in Vietnam should be improved.
90. Many countries /already using /solar energy. 90…
A. Many countries is already using solar energy.
B. Many countries was already using solar energy.
C. Many countries are already using solar energy.
D. Many countries were already using solar energy.
II/ Choose A, B, C or D the sentence that has the same meaning as the first.
91. As soon as I receive my result, I will phone you. 91…
A. I will ring you the moment I receive my result.
B. Sooner or later after I receive my result, I will give you a ring.
C. After receiving my result, I will call you.
D. I will make a phone call to you when I get my result.
92. When I was a young girl, chocolate was one of my favourites. 92….
A. When very young, I like eating chocolate cakes.
B. Chocolate used to be a favorite of mine when I was a young girl.
C. My favourite was chocolate as was a little a girl.
D. Being a little girl, I like chocolate.
93. I haven't seen my aunt for years. 93…
A. I haven't meet my aunt for long ago.
B. The last time I met my aunt was since years ago.
C. I last saw my aunt years ago.
D. I didn't see my aunt years ago.
94. They will use solar energy to protect the environment. 94…
A. Solar energy will be used for protect the environment.
B. Solar energy will be use to protect the environment.
C. Solar energy will be used to protect the environment.
D. Solar energy will used to protect the environment.
95. Although she eats lots of food, she is still very slim. 95…
A. In spite of eating lots of food, she is still very slim.
B. In spite of eat lots of food, she is still very slim.
C. In spite of eating lot of food, she is still very slim.
D. In spite of eating lots for food, she is still very slim.
96. What is the distance between Hanoi and HCM city? 96….
A. How far it is from Hanoi to HCM city?
B. How far is it from Hanoi to HCM city?
C. How far is its from Hanoi to HCM city?
D. How far is it’s from Hanoi to HCM city?
97. Although she is so young, she sings beautifully (age) 97…
A. In spite of hers young age, she sings beautifully.
B. In spite of her young ages, she sings beautifully.
C. In spite of she young age, she sings beautifully.
D. In spite of her young age, she sings beautifully.
98. I find English interesting. 98….
A.I am interested on English.
B.I am interested in English.
C.I am interested at English.
D.I am interested of English.
99. Our roof will be fixed tomorrow. 99…
A. They will has their roof fixed tomorrow.
B. They will had their roof fixed tomorrow.
C. They will have their roof fixed tomorrow.
D. They will having their roof fixed tomorrow.
100. They will show flying cars to the public when they finish it. 100…
A. Flying cars will be shown to the public when finished.
B. Flying cars will be show to the public when finished.
C. Flying cars will being shown to the public when finished.
D. Flying cars will be showing to the public when finished.
He drives carelessly. His mother worries about him.
=> If .......
He drives carelessly. His mother worries about him.
=> If he drives carelessly,his mother will worry about him
Chuyển thành cấu trúc câu “ such........that.”: 1. She is so unhappy that she rarely smiles 2.It rained so heavily that we got wet 3.He drives so carelessly that he is having an accident
1 she is such an unhappy girl that she rarely to smiles
2 It was such a heavy rain that we got wet
3 he was such a careless driver that he is having accident
*Choose the meaningful sentence A, B, C or D.
Câu 35. Jim/ have/ serious/ car/ accident/ last/ month/ ; / however/ , / he/ recover/ quickly/.
A. Jim did have a serious car accident; however, he recovered quickly.
B. Jim had serious car accident; however, he recovered quickly.
C. Jim had a serious car accident; however, he recovers quickly.
D. Jim had a serious car accident; however, he recovered quickly.
Câu 36. My father and I/ not/ use to/ spend/ time/ with/ each other/.
A. My father and I did not use to spend time with each other.
B. My father and I do not use to spend time with each other.
C. My father and I did not used to spend time with each other.
D. My father and I did use to spend time with each other.
Câu 37. This time / next week / I / be / enjoy / summer holiday / beach/.
A. This time next week I will being enjoy my summer holiday on beach.
B. This time next week I will be enjoying my summer holiday at beach.
C. This time next week I am enjoying my summer holiday on beach.
D. This time next week I will be enjoying my summer holiday on beach.
Câu 38. The quality / public transport/ services / Vietnam / should / improve /.
A. The quality of public transport services in Vietnam should be improved.
B. The quality public transport services in Vietnam should be improved.
C. The quality public of transport I services in Vietnam should be improved.
D. The quality of public transport services in Vietnam should being improved.
Câu 39. Although he was very tired, he agreed to play tennis.
A. Despite his tiredness, he agreed to play tennis.
B. Tired as he was, he agreed to play tennis.
C. Even if he felt tired, he agreed to play tennis.
D. He was tired because he agreed to play tennis.
Câu 40: This is her school
A. This school is her
B. This school is she
C. This school is hers
D. This school is him
Finish each of the following sentences in such a way that it is as similar as possible in meaning to the original sentence.
1. I didn’t know that you were in the hospital, so I didn’t visit you.
→ If ____________________________________________.
2. Hurry up or you will be late.
→ If ____________________________________________.
3. She is very busy, so she can’t help me now.
→ If ____________________________________________.
4. He didn’t phone me because he didn’t know my phone number.
→ If ____________________________________________.
5. You’re unfit because you don’t take exercise.
→ If ____________________________________________.
6. Unless you are careful, you will cut yourself with that knife.
→ If ____________________________________________.
7. If I have time, I’ll help you.
→ Unless ____________________________________________.
8. He didn’t study his lessons very carefully, so he gets bad marks now.
→ If ____________________________________________.
9. Dick often causes accidents because he drives carelessly.
→ If ____________________________________________.
10. I can’t apply for that job because I don’t know English.
→ If ____________________________________________.
* Vì đây là chương trình Anh lớp 9 nên chưa nắm rõ, có gì sai sót mong AD thông cảm ạ *
Finish each of the following sentences in such a way that it is as similar as possible in meaning to the original sentence.
1. I didn’t know that you were in the hospital, so I didn’t visit you.
→ If I had known that you were in hospital, I would have visited you.
2. Hurry up or you will be late.
→ If you don't hurry up, you wil be late.
3. She is very busy, so she can’t help me now.
→ If she weren't very busy, she could help me now.
4. He didn’t phone me because he didn’t know my phone number.
→ If he had known my phone number, he would have phoned me.
5. You’re unfit because you don’t take exercise.
→ If you took more exercise, you would be fit.
6. Unless you are careful, you will cut yourself with that knife.
→ If you aren't careful, you will cut yourself with that knife.
7. If I have time, I’ll help you.
→ Unless I have time, I won't help you.
8. He didn’t study his lessons very carefully, so he gets bad marks now.
→ If he had studied his lesson very carefully, he wouldn't get bad marks now.
9. Dick often causes accidents because he drives carelessly.
→ Dick drove carefully , he wouldn't often cause accidents .
10. I can’t apply for that job because I don’t know English.
→ If I knew English, I could apply for that job.
1.If I had konwn tha you were in hospital, I would have visited you.
2.If you don't hunrry up, you will be late.
3.If she weren 't very busy, she could help my now.
4.If he had konwn my phone number, he would have phoned me
5.If you took exercise, you would be fit unfit.
6.If you are not,you will cut with that knife.
7.Unless I have time, I won't help you.
8.If he had studied his lessons very carefully, he woudn't get bad marks now.
9.If dick drove carefully, he wouldn't cause acciddent .
10.If I knew English, I could apply for that jop.
1. If I had known tha you were in hospital, I would have visited you.
2. If you don't hurry up, you will be late.
3. If she weren't very busy, she could help me now.
4. If he had known my phone number, he would have phoned me.
5. If you took more exercise, you would be fit.
6. If you are not careful, you’ll cut yourself with that knife
7. Unless. I have time, I won’t help you.
8. If he had studied his lessons very carefully, he wouldn’t get bad marks now.
9. If Dick drove carefully, he wouldn’t cause accident.
10. If I knew English, I could apply for that job.
26. If today _____ Sunday, we wouldn’t have to work.
A. is B. are C. were D. isn’t
27. He _____ an accident if he drove more carefully.
A. wouldn’t have B. will have C. wouldn’t have had D. won’t
28. If we _____ hurry up, we will miss the flight.
A. did B. don’t C. do D. does
29. You _____ much progress if you attended class regularly.
A. can make B. will make C. could make D. make
30. If she _____ more carefully, she might not make too many mistakes.
A. has written B. had written C. wrote D. writes
26. If today _____ Sunday, we wouldn’t have to work.
A. is B. are C. were D. isn’t
27. He _____ an accident if he drove more carefully.
A. wouldn’t have B. will have C. wouldn’t have had D. won’t
28. If we _____ hurry up, we will miss the flight.
A. did B. don’t C. do D. does
29. You _____ much progress if you attended class regularly.
A. can make B. will make C. could make D. make
30. If she _____ more carefully, she might not make too many mistakes.
A. has written B. had written C. wrote D. writes
26.were
27.wouldn't have
28.don't
29.cuold make
Viet lai cau
1. Trung drives more carefully than minh so he has reraly had an accident(carelessly)
>>minh
2. Going by taxi is faster than going by bus butil costs mor than a bus (little)
>>
Viet lai cau
1. Trung drives more carefully than minh so he has reraly had an accident(carelessly)
>>minh drives more carelessly than trung so he has reraly had an accident
2. Going by taxi is faster than going by bus butil costs mor than a bus (little)
>>Going by bus is slower than going by taxi but it costs little
Viet lai cau
1. Trung drives more carefully than minh so he has reraly had an accident(carelessly)
>>minh drives more carelessly than Trung so he has reraly had an accident
2. Going by taxi is faster than going by bus butil costs more than a bus (little)
>>Going by taxi is faster than going by bus but it doesn't costs as little as a bus
Viet lai cau
1. Trung drives more carefully than minh so he has reraly had an accident(carelessly)
>>minh drives more carelessly than Trung so he has reraly had an accident
2. Going by taxi is faster than going by bus butil costs more than a bus (little)
>>Going by taxi is faster than going by bus but it doesn't cost as little as a bus
1. he didn’t miss the plane because he hurriedWomen can delay having children due to effective birth control methods.
A. If there are not effective birth control methods
B. , women can not delay having children
C. Unless women could delay having children there were not effective birth control methods
D. If there were not effective birth control methods, women could not delay having children
E. If there had not had effective birth control methods, women could not have delayed having children
2. He can not find a good job because he doesn’t know how to use a computer
A. If he knows how to use a computer, he can find a good job
B. If he knew how to use a computer, he could find a good job
C. If he had known how to use a computer, he could have found a good job
D. If he had known how to use a computer, he could find a good job
3. The coffee was too hot for us to drink
A. Although the coffee was so hot we could drink it
B. If the coffee were not too hot, we could drink it
C. If the coffee had not been too hot, we could have drunk it
D. Because the coffee was too hot, we drank it
4. He had spent his money carelessly and became broke
A. If he doesn’t spend his money carelessly, he will not become broke
B. If he didn’t spend his money carelessly, he would not become broke
C. If he hadn’t spent his money carelessly, he would not have become broke
If he didn’t spend his money carelessly, he would not have become broke
1. he didn’t miss the plane because he hurriedWomen can delay having children due to effective birth control methods.
A. If there are not effective birth control methods
B. , women can not delay having children
C. Unless women could delay having children there were not effective birth control methods
D. If there were not effective birth control methods, women could not delay having children
E. If there had not had effective birth control methods, women could not have delayed having children
2. He can not find a good job because he doesn’t know how to use a computer
A. If he knows how to use a computer, he can find a good job
B. If he knew how to use a computer, he could find a good job
C. If he had known how to use a computer, he could have found a good job
D. If he had known how to use a computer, he could find a good job
3. The coffee was too hot for us to drink
A. Although the coffee was so hot we could drink it
B. If the coffee were not too hot, we could drink it
C. If the coffee had not been too hot, we could have drunk it
D. Because the coffee was too hot, we drank it
4. He had spent his money carelessly and became broke
A. If he doesn’t spend his money carelessly, he will not become broke
B. If he didn’t spend his money carelessly, he would not become broke
C. If he hadn’t spent his money carelessly, he would not have become broke
If he didn’t spend his money carelessly, he would not have become broke
REWRITE THE FOLLOWING SENTENCES USING IF-> UNLESS
TYPE1
1. If he doesn't hurry, he will be late for school
-> unless
2. unless it stops raining, we won't go out
-> if
3. you will get success if you are patient
- unless
4. those flowers will die if nobody waters them
- unless
5. no one can help him if he doesn't tell the truth
- unless
6. you will catch a cold unless you keep your feet dry
- if
7. if i don't catch the plane, i will not be home by five
- unless
8. if you don't apologize, i will never speak to you again
-unless
9. unless he gives me his number, i won't phone him
- if
10. he cannot do that exercise if he doesn't learn his lessons carefully
-unless
TYPE 2
1. unless the studied harder, he would fail the final exam
- if
2. unless the drank alcohol, he would pass the contest
- if
3. unless he phoned immediately, he wouldn't meet Mary
-if
4/ if we didn't have a calculator, we couldn't work his more quickly
-unless
5. if i weren't weak, i could walk
- unless
6. if you weren't slow now, you could uiwn the race
- unless
7. if you didn't speak very quickly, the students could hear you well
- unless
8. if tom didn't invite me, i wouldn't go to the party
- unless
9. if they didn;t know his number now, they wouldn't give it to me
- unless
10. unless he were careful, he would have serious accident
- if
TYPE3
1. if he hadn;t been too lazy, he wouldn't have failed the exam
- unless
2. unless yesterday had been a nice day, we wouldn;t have gone camping
-if
3. if you hadn't driven carefully, you would have had a serious accident
- unless
4. if the bus hadn't been crowded, he wouldn't have walked to the office
-unless
5. unless you had studied hard, you wouldn't have walked to the office
- if
6. unless you had helped me, i wouldn't have finished our homework
- if
7. unless the meeting were so long they wouldn't feel tired
- if
8. if he weren't too lazy, he would pass the exam
- unless
REWRITE THE FOLLOWING SENTENCES USING IF-> UNLESS
TYPE1
1. If he doesn't hurry, he will be late for school
-> unless he hurry, he will be late for school
2. unless it stops raining, we won't go out
-> if it doesn't stop raining, we won't go out
3. you will get success if you are patient
- unless you aren't patient,you will get success
4. those flowers will die if nobody waters them
- unless nobody doesn't water them,those flowers will die
5. no one can help him if he doesn't tell the truth
- unless he tell the truth,no one can help him
6. you will catch a cold unless you keep your feet dry
- if you don't keep your feet dry,you won't catch a cold
7. if i don't catch the plane, i will not be home by five
- unless i catch the plane, i will not be home by five
8. if you don't apologize, i will never speak to you again
-unless you apologize, i will never speak to you again
9. unless he gives me his number, i won't phone him
- if he doesn't give me his number, i won't phone him
10. he cannot do that exercise if he doesn't learn his lessons carefully
-unless he learn his lessons carefully,he can do that exercise
TYPE 2
1. unless the studied harder, he would fail the final exam
- if the didn't study harder, he would fail the final exam
2. unless the drank alcohol, he would pass the contest
- if the didn't drink alcohol, he would pass the contest
3. unless he phoned immediately, he wouldn't meet Mary
-if he didn't phone immediately, he wouldn't meet Mary
4/ if we didn't have a calculator, we couldn't work his more quickly
-unless we didn't have a calculator, we couldn't work his more quickly
5. if i weren't weak, i could walk
- unless i were weak, i could walk
6. if you weren't slow now, you could uiwn the race
- unless you were slow now, you could uiwn the race
7. if you didn't speak very quickly, the students could hear you well
- unless you spoke very quickly, the students could hear you well
8. if tom didn't invite me, i wouldn't go to the party
- unless tom invited me, i wouldn't go to the party
9. if they didn;t know his number now, they wouldn't give it to me
- unless they knew his number now, they wouldn't give it to me
10. unless he were careful, he would have serious accident
- if he weren't careful, he would have serious accident
TYPE3
1. if he hadn;t been too lazy, he wouldn't have failed the exam
- unless he had been too lazy, he wouldn't have failed the exam
2. unless yesterday had been a nice day, we wouldn;t have gone camping
-if yesterday hadn't been a nice day, we wouldn;t have gone camping
3. if you hadn't driven carefully, you would have had a serious accident
- unless you had driven carefully, you would have had a serious accident
4. if the bus hadn't been crowded, he wouldn't have walked to the office
-unless the bus had been crowded, he wouldn't have walked to the office
5. unless you had studied hard, you wouldn't have walked to the office
- if you hadn't studied hard, you wouldn't have walked to the office
6. unless you had helped me, i wouldn't have finished our homework
- if you hadn't helped me, i wouldn't have finished our homework
7. unless the meeting were so long they wouldn't feel tired
- if the meeting weren't so long they wouldn't feel tired
8. if he weren't too lazy, he would pass the exam
- unless he were too lazy, he would pass the exam