1. was damaged

2. stayed

3.taking

4. written; have ever seen

5 always forgets

6. will come

1.he won’t revise for his exam, so he may get bad marks

If he revised for his exam, he might get good marks.

2.we may not go on holiday this summer because the epidemic COVID 19 is very dangerous

If the epidemic COVID 19 weren't very dangerous, we might go on holiday this summer.

3.he will not come because he may be busy

If he might not be busy, he would come.

4. she may not go to work because she is ill

IF she weren't ill, she might go t work.

5.The Italian team plays very well, so it may win the world cup

IF the Italian team didn't play very well, it might not win the world cup.

1.he won’t revise for his exam, so he may get bad marks

If he revised for his exam, he wouldn't get bad marks

2.we may not go on holiday this summer because the epidemic COVID 19 is very dangerous

If the epidemic COVID 19 wasn't very dangerous,we could go on holiday this summer 

3.he will not come because he may be busy

If he wasn't busy,he would come

4. she may not go to work because she is ill

IF she wasn't ill, she might go to work.

5.The Italian team plays very well, so it may win the world cup

IF  the Italian team didn't play very well, it might not win the world cup.

76.My teacher (come)....will come..here if he (have).....has....time.
77.The trees (grow)......are growing...........very fast at the moment.
78.David seldom (sing).........sings.........an English song.
79.I (help)........will help........you if I (be)......am........free.
80.Peter (borrow)........is going to borrow..........your CDs tonight.
81.If she (ask).......asks....me, I (not/answer)..won't answer.............her.
82.My mother often(tell)......tells.....stories at night.
83.They (travel)......travel......to Canada twice a year.
84.I (talk).......will talk.........with him if he (phone).........phones......me.
85.He (stay).......stayed......up very late last night.
86.He (learn)..........is going to learn.........French tonight.
87.Mr. Pike and Mr. Brown (leave)................will leave.......here next month.

76.My teacher (come).will come.....here if he (have).....has.....time.
77.The trees (grow).....are growing...........very fast at the moment.
78.David seldom (sing)........sings..........an English song.
79.I (help)...........will help.....you if I (be).......am.......free.
80.Peter (borrow)................is borrow..your CDs tonight.
81.If she (ask).....askes......me, I (not/answer).......won't answer........her.
82.My mother often(tell)...tells........stories at night.
83.They (travel)......travel......to Canada twice a year.
84.I (talk).............will talk...with him if he (phone).........phones......me.
85.He (stay).......stayed......up very late last night.
86.He (learn)........is learning...........French tonight.
87.Mr. Pike and Mr. Brown (leave)........are going to leave...............here next month.

Answer the following question , beginning with " If " 

ex : can he finish his work if he has enough time ?

-> If he has eoungh time , he can finish his work .

1. what do you do if you are tired ?

-> If i am tired, i will rested

2. what does your sister do if she is angry ?

-> If she is angry , she will relax

3.what does Peter do if he is happy ?

-> If he is happy, he will share it to his parents

4. what do children do if they have free time ?

 -> If if they have free time, they will go swimming

5. What do students do if teacher is absent ?

-> If the teacher is absent, they will sit quiet in their classroom

1. what do you do if you are tired ?

-> If I am tired, I will rested.

2. what does your sister do if she is angry ?

-> If she angry, she will relux.

3.what does Peter do if he is happy ?

-> If Peter happy, he will share it to his friend.

4. what do children do if they have free time ?

 -> If children have free time, they will play sport.

5. What do students do if teacher is absent ?

-> If the teacher absent, they will quiet in their classroom.

Ex8: Cho dạng đúng của động từ trong ngoặc

1. If It (not rain) …doesn't rain……today, they ( go)……will go……camping.

2. Peter (play) …will……soccer with his friends if he (have) …has….free time.

3. If Jane (study) …studies……..harder, she (pass) …will pass………….the entrance exams.

4. David (come and see) ……will comes and sees………….his girlfriend if he (not have to/work) …doesn't have to…..on a night shift.

5. This machine (break) …will break…..down if it (not use) ……..quite often.

6. Helen (come)…will comes….. to class late if she (not run)……doesn't run……….fast enough.

7. Giang’s parents (be)…will be…..very happy if she (get) …gets…….good marks at school.

8. Thomas (visit) …will visit….Ha Long Bay if he (earn) …earns…enough money.

9. If you (brush) …brush ...your teeth regularly, you ( not have)…won't have…….a toothache.

10. If Carol (have)…has....enough qualifications for the job she applied, she (get)..will get.. it.

Ex8: Cho dạng đúng của động từ trong ngoặc

1. If It (not rain) …doesn't rain……today, they ( go)……will go……camping.

2. Peter (play) …will……soccer with his friends if he (have) …has….free time.

3. If Jane (study) …studies……..harder, she (pass) …will pass………….the entrance exams.

4. David (come and see) ……will comes and sees………….his girlfriend if he (not have to/work) …doesn't have to…..on a night shift.

5. This machine (break) …will break…..down if it (not use) ……..quite often.

6. Helen (come)…will comes….. to class late if she (not run)……doesn't run……….fast enough.

7. Giang’s parents (be)…will be…..very happy if she (get) …gets…….good marks at school.

8. Thomas (visit) …will visit….Ha Long Bay if he (earn) …earns…enough money.

9. If you (brush) …brush ...your teeth regularly, you ( not have)…won't have…….a toothache.

10. If Carol (have)…has....enough qualifications for the job she applied, she (get)..will get.. it.

Ex9: Bài tập biến đổi Unless = if......not.

1. If Andrew is not lazy, he will pass the final examination. (unless)

→................Unless Andrew lazy, he will pass the final examination. ..........................................................................

2. John will not catch the train unless he runs more quickly. (If)

→.....................John will catch the train if he runs more quickly.....................................................................

3. The tree will die if it isn’t watered every day. (unless)

→ .....................The tree will die unless it watered every day......................................................................

4. Life won’t be very easy if we don’t earn lots of money. (unless)

→..................Life won’t be very easy unless we earn lots of money........................................................................

5. If you don’t practice more often, your English won’t be better.

→ ...................Unless you practice more often, your English won’t be better........................................................................

6. Jack will be dismissed if he doesn’t try to work harder.

→.................Jack will be dismissed unless he tries to work harder..........................................................................

Ex10: Thành lập câu điều kiện 1 dựa vào các tình huống cụ thể sau.

1. Work harder or you will lose your job.

→............Unless work harder, you will lose your job...............................

2. Pay attention to the teacher or you won’t understand the lessons.

→.................Unless pay attention to the teacher, you won’t understand the lessons........................................................................

3. Go to bed early or you can’t get up early the next morning.

→........................ Unless go to bed early, you can’t get up early the next morning..................................................................

4. Save money now or you will be in debt in the future.

→.............. Unless you save money now, you will be in debt in the future............................

5. Read more referent books if you want to win a place at university.

→.............Should you read more referent books, you will win a place at university ...........................

6. Driving more carefully or you will have an accident.

→................Unless driving more carefully, you will have an accident..........................................................................

7. Brush your teeth often in order not to get toothache.

→................If you don't brush your teeth, you will get toothache .....................

8. Listen carefully or you won’t know what to do.

→...........Unless listen carefully, you won’t know what to do...............................................................................

Conditional sentences

1. If John (study) _studies___ hard, he (pass)_will pass___ his examinations

2. I (go) __will go__ shopping with you if I (have)__have__ time tomorrow

3. I (speak)_will____ with him if he (arrive) __arrives___ on time

4. If the train(be) __is___ late. We (not/be)__won't be__ able to see them

5. If the weather (be)___is__ nice tomorrow, I (go) __will__ shopping with you

6. He(find) __will__ a job somewhere if he (try)_tries___ hard

7. If he( fail)__failes___ the text , he (have)__will have__ to repeat the course

8. We (be)__will___ in the dark if you(turn)__turn___ off the light

9. If he(have)_has___ free time, he will go swimming

10. If you(come) __come__ into his garden, the dog will bite you

11.If I have much money, I (buy) __will__ a new car

12.They will take him to the movies if he(come)_comes___ there

13. If it(not rain)_isn't rain__ tonight, I will go to the theater

14. Where__will__ you(go)_go__ next week if you (have)_have__ a car?

1 man is 17 years old . lan is 15 years old

>>........Lan is younger..than the man.....

2 the boys asked his mother .........................................

a if he can eat the cake b if he could eat the cake c can he eat the cake d could he eat the cake

3 she said : i have lived here for ten years

>> she told me .......................................

a that she has lived there for ten years b she had lived here for ten years c that she had lived there for years d that she had lived here for ten years 4 if mary does not improve in maths , we ....................have to find a tutor for her

a will b can c should d would

5 i want to know why ........................... to the meeting

a did not he come b he did not come c he did not arrive d he not come

6 he asked me who the editor of that book.................................................?

a is b are c was d were

7 if you want to attend the course , you ............................ pass the examination

a have to b has to c had to d could

8 he told me he ........................ leave the city the following day

a will have to b would have to c has to d had to

9 he wants to know whether i......................back tomorrow

a come b will come c would come d came

1. what do you do if you are tired ?

-> If you are tired, what will you do

2. what does your sister do if she is angry ?

-> If she is angry, what will your sister do

3.what does Peter do if he is happy ?

-> If he is happy, what will peter do

4. what do children do if they have free time ?

 -> If they have free time, what will children do

5. What do students do if teacher is absent ?

-> If teacher is absent, what will students do