Question

Choose the most suitable form.

1. He asked us if he may/is able to make a suggestion.

2. You can/must read this book, it’s really excellent.

3. She mustn't/couldn't have overslept. Three alarm clocks had been set the night

before to wake her up.

4. The fireman was able to/could introduce his hand through the narrow opening

and open the door; otherwise the child couldn't have been/weren't able to come

out.
5. In this season you mustn't/don't need to water the flowers every day; it's raining

quite often.

6. She was very obstinate. She would/should never do what her parents told her.

7. I must/dare not ask her to wait anymore. She's been here for two hours.

8. You wouldn't/shouldn't open that letter. It's for father.

9. You may/can be older than her but you look twice as good.

10. This needn't/can't be the building grandpa described; he said it was big, this one

is hardly bigger than a house.

11. I did my best but the car can't/won't start.

12. I could help/could have helped you if only you had asked me to.

13. There used to/would be a supermarket at this corner.

14. I might/should go now; it's getting late​

Answer 1

1. Is
2. Must
3. Couldn’t
4.was able to
5. Don’t need to
6. Would.
7.dare
8.shouldn’t
9.may
10.can’t
11. Won’t
12.could have helped
13.used to
14.should

Answer 2

1. May
2. Must
3. Couldn’t
4. Was able
5. Don’t
6. Would
7. Must
8. Shouldn’t
9. May
10. can’t
11. Won’t
12. Could have
13. Used to
14. Should