Children’s brains can’t develop properly_______ they lack protein(蛋白质).
| A．when | B．since | C．because | D．unless |
When I go out in the evening I use the bike the car if I can.
| A．rather than | B．other than | C．better than | D．more than |
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 |