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33．―Have you finished your homework.Adson?―No.Not yet．―Then you go out to play basketball．You must finish your homework first．A．can't B．mustn't C．must D．needn't 【查看更多】

 

題目列表(包括答案和解析)

—Have you finished your homework，Adson?

—No，not yet．

—Then you ________ go out to play basketball．You must finish your homework first．

A．can't             B．mustn't            C．must                D．needn't

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