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
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
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。