Question

【题目】Susan ________ be here now because she has just gone to New York.
A.mustn't
B.can't
C.needn't
D.may not

Answer 1

【答案】B
【解析】句意：Susan不可能现在在这儿，因为她刚刚去了纽约。mustn't表禁止；can't否定的猜测，不可能；needn't 不必；may not也许不。故选B。