—Oiliseverywhereinthisstore,soyou            knowsmokin...

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问题详情:

—Oiliseverywhereinthisstore,soyou            knowsmokin...

—Oil is everywhere in this store, so you             know smoking is forbidden here.

—I'm sorry.

A. can               B. may               C. must

【回答】

C

知识点:情态动词

题型:选择题

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