Điền từ thích hợp vào chỗ trống

Bài 6: Điền từ thích hợp vào chỗ trống
might have        could have (x2)       should have       had to  didn’t have towould have       needn’t have 
1. What ……….you …………if you had been me ? (DO)

2. I’m not sure but I think it …………………..the postman who knocked just then. (BE)
3. Nobody ……………..last night’s storm. It came as a total surprise. (PREDICT)

4. Do you think I ………………….Nick (CALL) ?

5. None of us …………..up so early , so we stayed in bed till 10. (GET)

6. Bill ……………..me these flowers. But I am delighted that he did. (SEND)

7. I think Tom ………………………here. I think saw his car. (BE)

8. We…………………..the apartment because my sister had already done it. (CLEAN)