问题
选择题
There are many sheep eating grass ______ the fields and ______ the hills.[ ]
A. on; on
B. at; at
C. in; on
D. on; in
答案
答案：C
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There are many sheep eating grass ______ the fields and ______ the hills.[ ]
A. on; on
B. at; at
C. in; on
D. on; in
答案：C