Thezookeeperisworriedbecausethenumberofvisitors
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问题详情:
The zoo keeper is worried because the number of visitors ________ smaller and smaller.
A.become B.became
C.is becoming D.have become
【回答】
C
知识点:动词时态
题型:选择题
问题详情:
The zoo keeper is worried because the number of visitors ________ smaller and smaller.
A.become B.became
C.is becoming D.have become
【回答】
C
知识点:动词时态
题型:选择题