Studies show that people are more______ to suffer from back problems if they always sit before computer screens for long hours.
| A．probable | B．possible | C．likely | D．Maybe |
.--Your parents were anxious about you. You _____ home without saying a word.
-- It’s my fault.
| A．mustn’t be | B．shouldn’t have left |
| C．needn’t have left | D．couldn’t have left |
Hello! I ________ you _______ in London. How long have you been here?
| A．don’t know, were | B．hadn’t known ,are |
| C．haven’t known ,are | D．didn’t know, were |
________ is the best student in our class?
| A．Whom do you think | B．Who do you think |
| C．Do you think who | D．Who you think |
Once fighting_____ between the two villages and many people were killed.
| A．broke out | B．was broken out |
| C．had broken out | D．had been broken out |
The practice of hanging clothes across the sreet is a common______in many parts of the city.
| A．sign | B．view | C．look | D．sight |