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-Youareveryweak.Youtakemoreexercise.It'sgoodforyou.-YouarerightI'lltakeyouradvice.[]A.mustB.havetoC.oughttoD.may

题目详情

-You are very weak.You ________ take more exercise.It's good for you.

-You are right I'll take your advice.

[  ]

A. must

B. have to

C. ought to

D. may

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答案和解析
答案:C