1. She spoke in a low voice  , but I _____what she was saying.

A. can understand   B. could understand    

C. were able understand       D. could have understood

2. The fire spread through the building very quickly, but everyone ____escape.

A. could                           B. can be able                    C. was able to                     D. could be

3. We didn’t go out last night. We _____ to the movies, but we decidec to stay at home.

A. could go          B. can go             C. could be going                 D. could have gone

4. You’ve been travelling all day . You _______very hard right now.

A. must to study              B. must be studying             C. had to study                 D. must have studied

5. I hear that your exams are next week. You ____very hard right now.

A. must to study   B. must be studying   C. had to study                 D. must have studied

6. The phone rang but I didn’t hear it. I ______asleep.

A. must be      B. had to be                          C. ought to be               D. must have been

7. She passed me on the street without speaking. She _____me.

A. mustn’t see        B. can’t see          C. mustn’t have seen             D. can’t have seen

8. Jack was an excellent tennis player. He _______anybody.

A. can beat    B. is able to beat                    C. could beat       D. was able to beat.

9. It’s really a good movie. You _____and see it this evening.

A. should have gone    B. must have to go       C. ought to go                 D. used to go

10. I’m not sure where to go on my vacation, but I _____to Ha Long Bay.

A. able to go    B. may go                         C. can be going          D. may not be going

IV. Complete the sentences with the correct form (to-infinitive or -ing form) of the verbs in the
box. Some verbs can be followed by either a to-infinitive or an -ing form.
1. My brother loves _____________ live football on TV.
2. Do people in your country like _____________ abroad on vacation?

3. Riding a bike is Lan’s pleasure, but she detests _____________ in the rain.
4. I don’t mind _____________ at home to look after the children.
5. As a child, he hated _____________ books, but now he finds it enjoyable.
6. Minh is in good shape. He enjoys _____________ sport and exercise.
7. She doesn’t like _____________ up early in the morning, especially at the weekend.
8. Emily dislikes _____________ crafts, but she enjoys origami.
9. I fancy _____________ out tonight because I’m too tired to cook.
10. Nancy adores _____________ with her best friend Helen.

complete the following sentences using "bare infinitive" or "to infinitive"

1:he made me (do).........................it all over again

2:she can (sing)..............................quite well

3:he will be able (swim).....................very soon

4:i used (live).........................in a caravan

5:you ought (go)......................today.It may (rain) tomorrow

6:i want (see)...........................the house where our president was born.

7:He made her (repeat ).....................the message

8:May i (use).........................your phone?

9;He should (know)......................how (use).....................the film projector ,but if he doesn't had better (show)................him

10:If you want (get)........................there before dark you should (start)......................at once

I. Choose the underlined part among A,B,C or D that needs correcting

32 Your \(\)gradfather could speak five languages, could he?

33 she spoke in a very low voice, but I can understand what she said

34 I used to be to stand on my head but I can't br able to do it now

35 The trip was cancelled last week. John couldn't go away because he was ill

II. Complete the questions by adding the tag questions

1. Paul doesn't like football,....

2. You have got a sister,...

3. You haven't done you homework,...

4. You sat next to Helen,....

5 Your name is John,....

6. I didn't leave my wallet on the desk,...

III. Complete the sentences with could was/were or able to n't

1. Jack was an excellent tennis player. He.... beat anybody

2. The fire spread quickly but everyone... escape

3. They didn't have any tomatoes in the in the first shop I went to, but I..... get some in the next shop

4. He can't play tennis very well now but he.......play quite well when he was younger

5. The boy fell into the river but fortunately we........ rescue him

6. She wasn't at home when I phoned but I ...... contact her at her office

1. Can you manage 

2. Teens prefer 

3. You need 

4. They refused 

5. Emailing is popular, but most teens enjoy 

6. He would rather 

7. Where were you last night? I tried 

8. Young children nowadays spend more time 

9. We stopped 

10. It’s difficult 

11. Our English teacher made us 

12. He decided 

13. Many people dislike 

14. I can’t stand 

15. More and more people today are choosing 

I. Complete the sentences with the correct form ( to - infinitive or - ing form ) of the verbs in the box. Some verbs can be followed by either a to-infinitive or an -ing form.

" Stay, watch, cycle, eat, travel, read "

1. My brother loves _____________ live football on TV.

2. Do people in your country like _____________ abroad on vacation?

3. Riding a bike is Lan’s pleasure, but she detests _____________ in the rain.

4. I don’t mind _____________ at home to look after the children.

5. As a child, he hated _____________ books, but now he finds it enjoyable.

6. I fancy _____________ out tonight because I’m too tired to cook. 

I. Complete the sentences with the correct form ( to - infinitive or - ing form ) of the verbs in the box. Some verbs can be followed by either a to - infinitive or an - ing form. " Stay, watch, cycle, eat, travel, read ".

1. My brother loves _____________ live football on TV.

2. Do people in your country like _____________ abroad on vacation?

3. Riding a bike is Lan’s pleasure, but she detests _____________ in the rain.

4. I don’t mind _____________ at home to look after the children.

5. As a child, he hated _____________ books, but now he finds it enjoyable.

6. I fancy _____________ out tonight because I’m too tired to cook.

VI. Complete the sentences with the bare-infinitive, to-infinitive or -ing form of the verbs in brackets.

1. Can you manage___________ (finish) ___________ (type) the documents by 4 o’clock?

2. Teens prefer___________ (text) their friends rather than___________ (talk) to them

in person.

3. You need___________ (learn) ___________ (manage) your time more effectively.

4. They refused___________ (let) us___________ (check) in until we paid for excess luggage.

5. Emailing is popular, but most teens enjoy___________ (chat) Online more than ___________ (email).

6. He would rather___________ (make) a phone call than   ___________ (send) an email.

7. Where were you last night? I tried___________ (call) you but couldn’t             

___________ (get) through.

8. Young children nowadays spend more time___________  (look) at screens than

___________ (play) outside.

9. We stopped___________ (buy) some food, and then continued ___________ (drive) along the Highway 6.

10. It’s difficult ___________ (read) this message. Do you mind___________ (help) me?

11. Our English teacher made us___________ (learn) fifty new words every week.

12. He decided ___________ (explain) the problem on the phone instead of ___________ (send) a letter.

13. Many people dislike___________ (use) the public transport system at night.

14. I can’t stand___________ (do) the washing-up. Could you help me___________ (do) it?

15. More and more people today are choosing___________ (not marry).

Put the verbs in brackets into the infinitive or -ing form. 

19. Men no longer mind (do) ……………………housework.

20. What kind of food do astronauts avoid (eat) ……………………?

21. Students tend (be) ……………………more responsible for their studies.

22. Which roles are women expected (play) ……………………in the future?

23. She began (work) ……………………as a biologist three years ago.

24. He stopped (check) ……………………attendance as his students are hard-working.

25. Astronauts never forget (float) ……………………around in the weightless environment.

26. Women have attempted (share) ……………………the financial burden with their spouses.