-Doctor, should I take this medicine? -Twice a day． [ ] A． what time B． how much C． how soon D． how often 题目和参考答案——青夏教育精英家教网—

题目内容

－Doctor,________ should I take this medicine? －Twice a day．
[　　]
A．	what time
B．	how much
C．	how soon
D．	how often

答案：D
解析：

　　what time意为“什么时间”;how often表示“多久一次”，指动作的频率;how soon表示“还要多久才……”,一般用于将来时，回答用“in…”; how much表示“多少”，后面接不可数名词。而答语Twice a day．表示频率，故选D。

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