摘要：30．-Could I talk with you right now? I have something urgent. -If you , please come to my office. A．can B．may C．must D．should
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— Could I talk with you right now? I have something urgent.
— If you _____, please come to my office.
— If you _____, please come to my office.
[ ]
A. can
B. may
C. must
D. should
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B. may
C. must
D. should