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 Thedoctorsaysshe

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问题详情:

 Thedoctorsaysshe

 The doctor says she____be careful about her weight and diet because she has a history of heart disease in her family.

A. must    B. has to    C. should    D. all of the above

 

【回答】

D

知识点:虚拟语气与情态动词

题型:选择题

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