【題目】You must ________ three times a day and then you can be better.
A.have no medicine
B.take the medicine
C.to eat the medicine
D.to take the medicine

【答案】B
【解析】句意：你必須一天三次按時(shí)吃藥，這樣你會(huì)好起來。其中must 是情態(tài)動(dòng)詞，后加動(dòng)詞原形，吃藥為take the medicine，故選B。

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