问题
选择题
There are many pears ______ the tree, but there aren't any birds ______ it. [ ]
A. at; in
B. to; on
C. on; in
D. in; with
答案
答案：C
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There are many pears ______ the tree, but there aren't any birds ______ it. [ ]
A. at; in
B. to; on
C. on; in
D. in; with
答案：C