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—Could I have a word with you,mum?
—Oh,dear,if you ________.
A.canB.must
C.mayD.should
 B
解析 此处must表示“执意,偏要”,带有感情色彩,符合题意。can表示能力、许可、可能性;may表示可能性、许可;should表示义务和较大的可能性。
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