—Why do you collect so many old bikes?—IIl have them _ and give away to the children who

问题补充：

—Why do you collect so many old bikes?

—IIl have them _ and give away to the children who don have bikes.

A. used up

B. given up

C. fixed up

D. set up

答案：

A. used up

B. given up

(答案→)C. fixed up

D. set up

解析：used up用完，耗尽； given up放弃，交出； fixed up修理，解决；set up建立，开业。句意：你为什么修理这么多旧自行车？——我要把它们修理一下，然后送给那些没有自行车的孩子们。结合语境可知选Ｃ。