“That VCD you bought ____ very expensive” . “Do you know ____ ? ”
| A．ought to be ; how much it cost | B．may be ; how much it costs |
| C．must be ; how much it cost | D．can be ; how much doesn''t it cost |
The headmaster demanded all the teachers ______ in the office.
| A．mustn’t smoke | B．did smoke |
| C．should smoke | D．not smoke |
—How was that?
—I was chatting on line ______ the power went out.
| A．because | B．while | C．as | D．when |
In order not to be disturbed, I spent three hours _______ in my study.
| A．locking | B．locked | C．to lock | D．to be locked |
—What shall I do, go back home or stay here, since it’s so late?
—______. The bus is leaving.
| A．Have a day off | B．That’s a good point |
| C．Get a move on | D．Hang on a minute |
.I have not enough money left, so my_____ at a Christmas cake had to be thrown away.
| A．mind | B．try | C．result | D．attempt |