I have trouble (   )the books. A.find    B.finding

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I have trouble (   )the books. A.find    B.finding
I have trouble (   )the books. A.find    B.finding

I have trouble (   )the books. A.find    B.finding
应该是选B.动名词修饰宾语做宾语补足语.
宾语补足语是位于宾语之后,说明宾语的状态,特征的成分,多由名词,形容词,副词,不定式,动名词和分词充当

B.finding
have trouble in doing in可以省略

B have trouble doing sth.