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—Who’s that man under the tree? Is it Mr. Black,our new English teacher?

—It_______ be. Mr. Black has gone to Shanghai for a holiday.

Amustn’t                        Bcan’t                     Cneedn’t

1、B

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—Who’s that man under the tree? Is it Mr. Black,our new English teacher?

—It_______ be. Mr. Black has gone to Shanghai for a holiday.

A.mustn’t                        B.can’t                     C.needn’t

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