I had a lot of troublethe book you wanted.A. on findingB. in findingC. to findD. at findin

发布时间：2020-08-15 02:09:47

I had a lot of trouble    the book you wanted.
A. on finding
B. in finding
C. to find
D. at finding

网友回答

A. on finding
B. in finding
C. to find
D. at finding
解析：have trouble（in ）doing sth.干某事时碰到困难。
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