His sister left home in 1998, and _______since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
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I would like a new job which pays more, but ______ I enjoy the work I’m doing at the moment.
| A．in other words | B．on the other hand | C．for one thing | D．as a matter of fact |
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Service was included in the bill, so you _______ the waiter. It was a waste of money.
| A．will not tip | B．may not tip | C．needn't have tipped | D．mustn't have tipped |
.
When you copy this paper, be careful not to ______ a single word.
| A．leave out | B．come out | C．set out | D．bring out |
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Why does she steal things ________ she could easily afford to buy them?
| A．when | B．where | C．unless | D．which |
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My parents would have come to see you if it had been possible, but they ________ so busy.
| A．were | B．had been | C．have been | D．would be |