问题
选择题
— Where is Tom?
— Look. He _______ in the pool with the boys. [ ]
A. is swim
B. is swimming
C. is swimming
D. swims
答案
答案：B
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— Where is Tom?
— Look. He _______ in the pool with the boys. [ ]
A. is swim
B. is swimming
C. is swimming
D. swims
答案：B