— My computer doesn’t work. It needs soon. — Why not have David it? Nobody can if he can

问题补充：

— My computer doesn’t work. It needs soon.

— Why not have David it? Nobody can if he can’t.

A. to fix; fix

B. to fixed; fixing

C. fixing; fix

D. fixing; fixed

答案：

A. to fix; fix

B. to fixed; fixing

(答案→)C. fixing; fix

D. fixing; fixed

解析：句意：我的电脑不能用了。它需要马上修理。为什么不让戴维修呢？如果他不行就没有人可以了。need doing需要做，表示被动；have sb do sth让某人做某事，所以选C。