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-Who it be that is knocking at the door?-It be father, but I’m not sure.A.can; m

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-Who it be that is knocking at the door?-It be father, but I’m not sure.A.can; m

—Who _____ it be that is knocking at the door?

—It ______be father, but I’m not sure.

A.can; mayB.may; canC.may; mustD.need; should

试题答案

A

解析