She is so optimistic that her cheerful spirits and bubbling laughter _____ the whole class.
| A．effect | B．effected | C．infected | D．infect |
Going abroad to study requires a big adjustment and it usually takes a while to_________.
| A．calm down | B．fit in | C．keep up | D．cheer up |
.Failure can make a positive contribution to your life_________you learn to use it.
| A．since | B．unless | C．until | D．once |
The police have issued a detailed _________of the missing boy.
direction B.expression C.description D.instruction
.—Did you receive my letter?
—I received one just as I _________
| A．set out | B．had set out |
| C．was setting out | D．would set out |
The quick rise in the price of food will make people_________，that is，affect people`s living standard.
| A．disturbed | B．fascinated | C．distinguished | D．interrupted |