--Why is the librarian looking so hard at me?You to read aloud in the reading room.A.

问题补充：

--Why is the librarian looking so hard at me?

--You to read aloud in the reading room.

A. don suppose

B. haven supposed

C. are not supposed

D. are not supposing

答案：

A. don suppose

B. haven supposed

(答案→)C. are not supposed

D. are not supposing

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