10.-All of us had a good time in the picnic last Sunday. Pity you we閳ワ腹鈧拷查看更多

 

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-All of us had a good time in the picnic last Sunday. Pity you weren’t there.

-I really _______ come but I was looking after my mother in hospital.

A.must        B.ought to    C.need have        D.should have

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