IV. Put the verbs in brackets in correct tenses with If-clauses: (Câu điều kiện If) 

     1.   If I (not, be) __________ busy, I could have watched T.V last night.

2. If the train were late, we (walk) ________________.
3. She ______________ (call) if she has time.
4. If it ________________ (cost) too much, I will buy the smaller one.
5. If the class______________ (be) full, we will find another one.
6. What will we do if the taxi_____________________ (not come)?
7. If it snows this summer, we____________________ (go) skiing.
8. If you drove more carefully, you_________________ (not have) so many accidents. 
9. If he______________ (get) up earlier, he’d get to work on time. 
10. I could tell you more about it if we (have) ______________ more time.
11. If I ______________ (be) you, I wouldn’t worry about going to university.

     12. Mai would have passed his exam if he (study) __________________ hard.

     13. If today (be) __________________ Sunday, we would go camping.

     14. If it (not rain) ______________________ a lot, the rice crop wouldn’t grow.

15. If you (not go) ________________ away I’ll send for the police.

V. Rewrite the sentence as directed with If-clauses: (Đổi sang câu điều kiện If)

1. The weather isn’t fine now, so we can’t go for a walk.

→ ___________________________________________________

2. I don’t have enough money so I can’t buy that car.

→ ___________________________________________________

3. Because Peter doesn’t study hard, he doesn’t get good marks.

→ ___________________________________________________

4. I got wet because I didn’t have an umbrella.

→ ___________________________________________________

5. Tom wasn’t there, so he didn’t see her.

→ ___________________________________________________

6. I didn’t know the answer, so I couldn’t tell you.

→ ___________________________________________________

7. I don’t have free time, so I can’t go to see him.

→ ___________________________________________________

8. I am not a millionaire, I can’t help all people. 

→ ___________________________________________________

VI. Change the following sentences into Passive Voice: (Đổi sang câu bị động)

1. Daisy picked these flowers in the garden.

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2. I have painted the walls green.

=>.................................................................................................................................................

3. He will finish the work next week.

=> ..................................................................................................................................................

4. She can use this room for the classroom.

=> ..................................................................................................................................................

5. They taught English here last year.

=> ..................................................................................................................................................

6. They had sent enough money to these poor boys.

=> ..................................................................................................................................................

7. Mrs. Green is cooking the food in the kitchen. 

=> ..................................................................................................................................................

8. They built a new hotel in 2012 near the park.

=> ..................................................................................................................................................

9. Mary was writing a letter at 3 p.m yesterday.

=> ..................................................................................................................................................

10. No one called the president last night. 

=> ..................................................................................................................................................