It rained a lot during their journey,so they _______ have had a good time.
| A．can’t | B．must |
| C．shouldn’t | D．might |
7.The university has launched a research center to develop new ways of ________ bacteria which have become resistant to drug treatments.
| A．regulating | B．halting | C．interrupting | D．combating |
6.Computer technology will ________ a revolution in business administration.
| A．bring around | B．bring about | C．bring out | D．bring up |
5.All their attempts to ________ the child from the burning building were in vain.
6.
| A．regain | B．recover | C．rescue | D．reserve |
4.She’s fainted. Throw some water on her face and she’ll ________.
| A．come round | B．come along | C．come on | D．come out |
3.Many a player who had been highly thought of has ________ from the tennis scene.
| A．disposed | B．disappeared | C．discouraged | D．discarded |