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】

 

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—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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