Criticism is highly necessary ____it helps to monitor the progress of our work．
| A．in which | B．for which | C．so that | D．in that |
—See the gathering clouds outside? Please take this umbrella with you．
— .
| A．Thanks．Take it easy | B．OK, just in case |
| C．Well, it just depends | D．All right．I'll try my luck |
Scientists hope to____soon in their fight against heart disease.
| A．break up | B．break out | C．break through | D．break in |
We haven’t heard from her for long, so we give her_____for dead.
| A．out | B．in | C．up | D．away |
Does the amount of rain_____the growth of crops?
| A．influence | B．effect | C．affect | D．increase |
In our school it is a rule that the students are banned______computer games.
| A．of playing | B．on playing | C．from playing | D．to play |