（题文）Be quiet! Steve ______ his homework in his study.A．doesB．hasC．is doingD．is h_刷题宝

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（题文）Be quiet! Steve ______ his homework in his study.

A．does

B．has

C．is doing

D．is having

上一题下一题 0.65难度单选题更新时间:2018-04-30 08:01:41

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