Bài 7. Chọn đáp án đúng nhất để điền vào chỗ trống trong mỗi câu sau.

1. "Where do you think Rooney is today?". "I have no idea. He _____ late."

a. should have left     b. would sleep      c. would have sleep     d. may have sleep

2. Berbatov painted his bedroom black. It looks dark and dreary. He _____ a different color.

a. had to choose                                    c. must have chosen

b. should have chosen                            d. could have chosen

3. The children _____ "thank you" to you when you gave them their gifts.

a. will have said     c. should have said   b. must say              d. should say

4. If we had known your new address, we _____ to see you.

a. came                  c. will come            b. would have come     d. would come

5. These two boys look identical. They _____ twins.

a. must have been     c. should be b. must be               d. should have been

6. You ......out last night. I called several times but nobody answered the phone.

a. must be     b. must have been   c. could have been     d. should have been

7. Micheal’s score on the test is the highest in the class; .........last night.

a. he must have studied hard        b. he should have studied hard

c. he must study hard                   d. he must had to study hard

8. Look! The yard is wet. It ......last night.

a. must rain                                           b. couldn’t have rained

c. must have rained                                d. should have rained

9. We ....you more help, but we were too busy.

a. might have given           b. might give           c. should give                         d. could give

10. You ....your pass at the entrance unless you are asked to do so.