I had a lot of trouble______the book you wanted.A.to find B.to fi_英语解答

I had a lot of trouble______the book you wanted.A.to find B.to finding C.find D.finding 为什么选D
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人气：141 ℃　时间：2020-01-28 18:23:33

解答

have trouble (in) doing sth.固定搭配.介词in 经常被省掉