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。