题目内容
It’s four o’clock in the afternoon. The boys __ in the pool.
| A.is swiming | B.are swiming | C.are swimming | D.is swimming |
C
解析
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题目内容
It’s four o’clock in the afternoon. The boys __ in the pool.
| A.is swiming | B.are swiming | C.are swimming | D.is swimming |
C
解析