--- What does the notice on the wall say? --- ‘No person take books out of the reading roo

问题补充：

--- What does the notice on the wall say?

--- ‘No person take books out of the reading room; otherwise he would be fined.’

A. will

B. may

C. shall

D. must

答案：

A. will

B. may

(答案→)C. shall

D. must

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