weren't - would visit

am not - will visit

We ( not see ) . haven't seen... our old teacher since we ( be ) .was.. in grade 6

' May I help you? ' - ' .... '

A. What can I do for you?                        B. I'm afraid I'm busy now

C. Yes. That's very kind of you                 D. How can I help? 

1 If I had enough money, I would buy it

2 If I wasn't busy, I could help you

3 If it doesn't rain, there will be a shortage of water

4  If she didn't eat many chíp, she wouldn't be fat

5 I won't only help you unless you promise to try harder

6 Unless it rains soon, the crop will be lost

7 If I weren't tired , I could concertrate properly

8, We don't have a garden, so we don't grow our own vegetables

--> If we had a garden, we would grow our own vegetables

9,He doesn't give you good advice because he isn't your true friend

--> If he were your true friend, he would give you good advice

10, We come late because the rain is so heavy

--> If The rain weren't so heavy, we wouldn't come late

11, You don't get better marks because you don't study harder

--> If you studied harder, you would get better marks

12, She is very busy so she can't go out tonight

--> If she weren't busy, she could go out tonight

13, I don't know anything about her background, so I can't tell you

--> If I knew anything about her background, I could tell you

14, I wasn't hungry so I didn't feel like eating

--> If I had been hungry, I would have felt like eating

15, She's so shy, that why she doesn't have many friends 

--> If she weren't so she, she would have many friends

16, I remembered Susan's birthday only because you reminded me about it

--> If you hadn't remind me about Susan's birthday, I wouldn't have remembered it

17, The car in front stopped so suddenly, so I crashed into its back

--> If the car hadn't stopped so suddenly, I wouldn't have crashed in to it's back

18, They painted the wall brown, that's why the house looked very dark

--> If they hadn't painted the wall brown, the house wouldn't have looked dark

19, My brother will have enough money. He will buy a bicycle

--> If my brother have enough money, He will buy a bycicle

20, I'll buy a new hat. I'll give it to you

--> If i buy a new hat, I will give it to you

21, You'll ask the teacher. He'll explain the lesson to you

--> If you ask the teacher, he will explain the lesson to you

22, I don't have enough money. I can't go on a long holiday this year

--> If I had enough money, I could go on a long holiday this year

23, I don't haave a typewriter. I can't type it myself

--> If I had a typewriter, I could type it myself

24, I don't live in a big city, so I can't go to the cinema very often

--> If I lived in a big city, I could go to the cinema very often

25, Lan doesn't have a bike, she walk to school

--> If Lan had a bike, she would walk to schook

26, He didn't hungry, so he missed the rain

--> If he had hurried, he wouldn't missed the train

27, We canceled our picnic because it rained very hard yesterday

--> If it hadn't rained very hard yesterday, we wouldn't have canceled our picnic

chúc e học tốt

1, I don't buy it because I don't have enough money

--> If I have enough money, I will buy it

2,I am busy now, so I can't help you

--> If I don't busy now, I will help you

3, There will be a shortage of water unless it rains

--> If  it doesn't rain, there will be a shortage of water

4, John is fat because she eat many chips

--> If she doesn't eat many chips, she won't fat

5, I'll only help you if you promise to try harder

--> Unless you promise try harder, I'll only help you

6, If it doesn't rain soon , the crops will be lost

--> Unless it rain soon, the crops will be lost

7, I am very tired so I can't concertrate properly

--> If I don't tired, I will concertrate properly

8, We don't have a garden, so we don't grow our own vegetables

--> If I have a garden, I will grow our own vegetables

9,He doesn't give you good advice because he isn't your true friend

--> If he give you good advice, he will your true friend

10, We come late because the rain is so heavy

--> If it doesn't rain so heavy, we won't come late

will you have time to help us?-..............I'm very busy at the moment.

a.I'm afraid not b.I think so c. i don't expect so

1.   Hurry up or you will be late.

            [ If .....................you don't hurry up, you will be late. ............................................................................................................

      2.   She is very busy, so she can’t help me now.

            [ If .......................she weren't busy, she could help me now..........................................................................................................

      3.   You’re unfit because you don’t take exercise.

            [ If .....................you took exercise, you would be fit............................................................................................................

      4.   Unless you are careful, you will cut yourself with that knife.

            [ If ................you aren't careful, you will cut yourself with that knife. .................................................................................................................

      5.   If I have time, I’ll help you.

            [ Unless .........................I have time, I ươn't help you...............................................................................................

      6.   Dick often causes accidents because he drives carelessly.

            [ If ........................Dick didn't drive carelessly, he wouldn't cause accidents.........................................................................................................

      7.   I can’t apply for that job because I don’t know English.

            [ If ......................I knew English, I could apply for that job ...........................................................................................................

      8. Leave me alone or I’ll call the police.

            [ Unless ......................you leave me alone, I’ll call the police. ..................................................................................................

1.if you don't take good care of it, the car breaks down so often

2.if you hurry up, you won't be late

3.if she were very busy, she couldn't help me now

4.if the weather weren't snowny, the children could go to school

5.if you take exercise, you will be fit

6.if you were careful, you would't cut yourself with that knife

7.unless i had time, i would't help you

8.unless you leave me alone, i will call the police

9.if he drives carefullly, dick doesn't often cause accidents

10.if i knew english, i could apply for that job

11. unless you tell me the whole truth, i will help you

12. unless they invited me, i wouldn't come

Tham khảo

1. Hurry up or you will be late.

 If you don't hurry up, you will be late.

2. She is very busy, so she can't help me now.

 If she wasn't/weren't busy, she could help me now.

3. You're unfit because you don't take exercise regularly.

 If you took exercise regularly, you would be unfit.

4. Unless you are careful, you will cut yourself with that knife.

 If you aren't careful, you will cut yourself with that knife.

5 Unless I have time, I won't help you

6 Dick often causes accidents because he drives carelessly.

 If Dick didn't drive carelessly, Dick wouldn't cause accidents.

7 I can't apply for that job because I don't know English.

 If I knew English, I could apply for that job.

8 Susan is overweight because she eats too much chocolate.

 If Susan didn't eat too much chocolate, she wouldn't be overweight.

9 His father often punishes him for his laziness.

 If he didn't be lazy, his father wouldn't punish him.

10 Study harder or you'll fail in the next exam.

 If you don't study harder, you'll fail in the next exam.

1. lt ( be)……was ………. warm, so I … took……. off my coat. (take)

2. The film ( not be)…wasn't......... very good. I  …wasn't enjoyed .. it much. ( not enjoy)

3. I( know)… knew…….. Sarah was busy, so I .......was't disturbed....... her. ( not disturb)

4. We( be)…was …. very tired, so we .....leaved...... the party early. (leave)

5. The bed( be)… …was…… very uncomfortable but I ...........sleeped.......well. (sleep)

6. The window( be)……was …… open and a bird .........flied...... into the room. (fly)

7. The hotel( not be)… …wasn't be……. very expensive. lt(not cost) ......wasn't costed....... much to stay there.

8. I( be)……was………. in a hurry, so I............. time to phone you. ( not have)

9. lt was hard carrying the bags. They .......were............... very heavy. (be)

10. I __stayed___ at my mom’s home yesterday. (stay) 

11. Hannah __went____ to the theatre last Sunday. (go)

12. I and my classmates _haved_____ a great time in Da Nang last year. (have)

13. My holiday in California last summer ___was___ wonderful. (be)

14. Last January I __visited ___ Sword Lake in Ha Noi. (visit)

15. My grandparents __was__ very tired after the trip. (be)

16.I ____bought___ a lot of gifts for my older brother. (buy)

17. James and Belle __saw_____ sharks, dolphins and turtles at Vinpearl aquarium. (see)

18. Gary _ate____ chicken and rice for lunch. (eat)

19. We ___talked___ about their holiday in Ca Mau. (talk)

20. They ( not be)___were't_____tired yesterday.

Chia động từ :

1, It's time we (go) .....went............. . If we (not leave).........didn't leave........ now, we (miss) ...would miss..................... the train

2, I know I (write) .....have written............. to you before , but I (be) .........have been............. so busy recently that I (not have ) ............didn't have............ time for writing letters . I (telephone) .........will telephone............... you instead , but I (forget) ......forgot........ your number

3, We will see Alice at the corner . She (wait) ..........will wait ............. for us when we (arrive) ..........arrive..............

1)went,didn't leave,would miss

2)have written,have been,didn't have,will telephone,forgot

3)will wait,arrve

1, It's time we went. If we don't leave now, we will miss the train.

2, I know I shouldn't have written to you before , but I have been so busy recently that I haven't had time for writing letters . I should have telephone you instead , but I have forgotten your number.