Bài 5: Chọn đáp án đúng:

1. When my father was young, he _____ work in the garden for long hours.

a. can                      b. could                   c. will           d. should

2. He_____ have committed the crime because he was with me that day.

a. mustn't                b. shouldn't              c. won't         d. couldn't

3. Since we have to be there by 8.30, we_____ take a taxi.

a. should                 b. may                     c. ought        d. are able to

4. It_____ rain this evening. Why don't you take an umbrella?

a. could be              b. must                    c. might        d. had better

5. _____ you help me with the homework?

a. May                    b. Shall                   c. Should      d. Will be

6. She hasn't eaten anything since yesterday. She_____ be really hungry.

a. might                   b. will                     c. must          d. can

7. I put my keys on the table, but now it's gone. Someone_____ have taken it.

a. may          b. had to                  c. should       d. would rather

8. Daisy is reading her English test because she has a test tomorrow. She_____ be studying.

a. will                     b. should                 c. must          d. can

9. We _____ put the fish in the fridge before it spoils.

a. had to                  b. may                     c. can            d. should

10. Mr. Brown is very rich. He_____ work hard for a living.

a. mustn't                b. shouldn't              c. can't          d. doesn't have to

11. Tom has just got a new job. He_____ be very pleased.

a. might                   b. must                    c. should       d. will

12. Tom painted his room black. It looks dark and dreary. He _____ have chosen another colour.

a. should                 b. must                    c. could         d. may

13. _____ you carry this bag for me?

a. May be                b. Should                 c. Will          d. Shall

14. You _____ throw litter on the streets.

a. mustn't                b. couldn't               c. needn't      d. won't

15. My mother permitted me to go out at night. She said, "You_____ go out tonight".

a. may          b. have to                c. must          d. ought to

16. It is possible that she will come to our party tonight. She ...... come her tonight.

a. need                    b. may                     c. should       d. will

17. They can type. They_____ type.

a. learn how to        b. are able to c. know how to        d. both B &C

18. He advised me to take an English course. I_____ take it early.

a. should                 b. shall                    c. will           d. may

20. As an orphan, he _____ earn his living alone.

a. have to                c. has had to            c. ought to     d. had to