UNIT II: EXERCISES

Exercises:

I- Fill in the blanks with: should, has to, don’t have to, might, must, mustn’t, must have been, can’t, could, couldn’t: (More than one answer is sometimes possible.)

1. She looks pretty sick. I think she …………………………… go to a doctor.
2. You've been driving all day. You …………………………… be exhausted!
3. You …………………………… smoke so much. It's bad for your health.
4. I …………………………… believe that you failed your test!
5. The book is optional. My professor said we …………………………… read it if we needed extra credit. But we …………………………… read it if we don't want to.
6. Susan …………………………… hear the speaker because the crowd was cheering so loudly.
7. The television isn't working. It ……………………………  damaged during the move.
8. He …………………be from the USA. He does not speak English.
9. They ………………be away for the weenkend but I am not sure.
10. We ………………………travel tomorrow if the weather is nice.

II- Choose the right answer:

1. When you come to the crossroads, stop there.

a- Remember to stop at the crossroads.

b- Remember stopping at the crossroads.

c- Both possibilities are correct.

2. Yesterday she read the first pages of her new book.

a- She began to read her new book.

b- She began reading her new book.

c- Both possibilities are correct.

3. I was talking to Marc. But when my friend came in, I could not talk to Marc anymore.

a- I stopped to talk to him.

b- I stopped talking to him.

c- Both possibilities are correct.

4. I wanted to write a letter, but I didn’t know what to write. (So in the end, I didn’t write one.)

a- I tried to write a letter.

b- I tried writing a letter.

c- Both possibilities are correct.

5. I am sorry now for something I said earlier on.

a- I regret to say this.

b- I regret saying this.

c- Both possibilities are correct.

6. The joke was so funny that he burst out in laughter.

a- He started to laugh.

b- He started laughing.

c- Both possibilities are correct.

KEYS