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Your trousers dirty.You must have washed. A.is;il B.are;it C.are;them D.is;them 【查看更多】

 

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Your trousers____ dirty.You must have____ washed.

A.is;il              B.are;it              C.are;them        D.is;them

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Your trousers____ dirty.You must have____ washed.

A．is;il

B．a(chǎn)re;it

C．a(chǎn)re;them

D．is;them

 

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