It is neccessary that a person()exercise eveyday if he wishes to be healthy.Adoes Bdid Cdo Dtakes答案是B为什么呢

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It is neccessary that a person()exercise eveyday if he wishes to be healthy.Adoes Bdid Cdo Dtakes答案是B为什么呢

It is neccessary that a person()exercise eveyday if he wishes to be healthy.Adoes Bdid Cdo Dtakes答案是B为什么呢
It is neccessary that a person()exercise eveyday if he wishes to be healthy.Adoes Bdid Cdo Dtakes
答案是B为什么呢

It is neccessary that a person()exercise eveyday if he wishes to be healthy.Adoes Bdid Cdo Dtakes答案是B为什么呢
B did
这是虚拟语气,neccessary后面的从句,should do ,或过去式.

(1)did 是do 的过去式,就是用在一般过去时中,(2)do既可以做动词也可以做助词,动词就是做的意思,助词时用在否定句中do not来表示后面的动词不发生关 (3)did还可以起强调的作用,she did do it。(她确实做的)

这个题是选do的,肯定是你那的答案错了,我们老师刚讲了这个题的

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