Faced with financial uncertainty, the family decided to____ their trip to Europe to save money.
| A．call off | B．call for | C．call in | D．call on |
I ________ it myself ________ your homework.
| A．prefer do; rather than copy | B．prefer doing; than copy |
| C．would do; rather than copy | D．would rather do; than copy |
____ he has made a decision, it is not easy for you to make him change his mind.
| A．Though | B．Unless | C．Once | D．Until |
Anything _____ could be found has been used to repair the damaged bridge.
| A．which | B．that | C．what | D．不填 |
There is something wrong with my computer. It needs _____.
| A．repairing | B．to repair | C．repaired | D．be repaired |
What do you think of the reason _____ he gave at the meeting yesterday?
| A．why | B．for which | C．that | D．in which |