问题
选择题
There ________ quite a few monkeys in the mountains. [ ]
A. is used
B. used to be
C. used to are
D. are used to be
答案
答案：B
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There ________ quite a few monkeys in the mountains. [ ]
A. is used
B. used to be
C. used to are
D. are used to be
答案：B