One thing’s for sure, the fire _____by some cigarette butts.
| A．might cause | B．could have caused |
| C．must have been caused | D．should be caused |
The speech by the headmaster given on my graduation ceremony is strongly impressed ___ my memory.
| A．to | B．over | C．by | D．on |
If you ____________ Amy, ask her to come and see me as soon as possible!
| A．catch sight of | B．lose sight of |
| C．are in the sight of | D．are at the sight of |
With everything needed________，the host declared the start of their wedding.
| A．in the place | B．taking place | C．out of place | D．in place |
The teacher always tells her students that only if __________ hard _________ achieve success.
| A．do they work, will they | B．do they work, they will |
| C．they work, will they | D．they work, they will |
As a job seeker, he should first decide what to do and what he should _________ in his resume(履历).
| A．leave behind | B．leave out | C．leave alone | D．leave off |