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—Listen! Is that Kate playing the piano in the room?

—No. It        be Kate. She has gone to London.

A. may not                 B. needn’t              C. mustn’t                    D. can’t

—Listen! Is that Kate playing the piano in the room?

—No. It        be Kate. She has gone to London.

A. may not                 B. needn’t              C. mustn’t                    D. can’t