I’ m amazed that the young actress married the photographer so soon, for she______him very well.

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问题 I’ m amazed that the young actress married the photographer so soon, for she______him very well.

选项 A、won’ t have known
B、can’ t have known
C、shouldn’ t know
D、mustn’ t know

答案B

解析 情态动词can/must+have done表示对已经发生的事物的一种推测,can表示推测(惊讶、怀疑、不相信的态度)时,用于疑问句、否定句和感叹句中;must表示推测时,只用于肯定的陈述句中,故选B。
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