题目

单项选择 There were many apples ______ the tree. A monkey was picking them ______ it. A. on; on　　 　B. in; in　　           C. on; in　           　D. in; on 答案：选C。考查介词的用法。树上生长的东西用on表示, 而非树上生长的东西则用in表示。

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