— Hi TomAny idea where Mary is? — She in the reading room．I saw her there just now．A. sh

问题补充：

— Hi, Tom．Any idea where Mary is?

— She in the reading room．I saw her there just now．

A. shall be

B. should have been

C. should be

D. might have been

答案：

A. shall be

B. should have been

(答案→)C. should be

D. might have been

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