—What are you busy with?
—The conference in our city next week.
A.held | B.will be held | C.being held | D.to be held |
The gravity on the earth is much ______ that on the moon, do you know why?
A.as strong as | B.strong than | C.so strong than | D.stronger than |
_____ by a black hole, Li Yanping was so frightened at first, but he calmed down later and
tried his best to escape.
A.Caught | B.Catching | C.To catch | D.Catch |
Mary has______ speaking dialects, so it is not surprising to see her communicate with the
people from different parts of this country easily.
A.a gift for | B.trouble in | C.effects on | D.nothing to do with |
We don’t have to ________ every word that we don’t know when reading.
A.look up | B.refer to | C.look for | D.look into |
We’ll discuss the problem ________ lunch time.
A.at | B.over | C.of | D.when |