Birds' singing is sometimes a warning to other birds __________ away.
| A．to stay | B．staying |
| C．stayed | D．stay |
Will the colors ______ if the dress is washed?
| A．drop | B．walk | C．pass | D．run |
—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
| A．must have | B．can’t have | C．would have | D．might have |
I should very much like to have gone to the party but I _________.
| A．am not invited | B．am not being invited |
| C．shall not be invited | D．was not invited |
For many seniors in some universities, the final year can be an unpleasant experience, ______ that ends the campus romance.
| A．which | B．/ | C．or | D．one |
Our school is no longer _________ is was 10 years ago, _________ it was not well equipped.
| A．what; which | B．that; which | C．what; when | D．that; where |