We have not been to the Great Wall for ages.No ,I don not remember how many years ago____I lastvisited it.A it was that B was it thatC It was whenD was it when 答案选C　,为什么,但是我觉得应该用when啊?

问题描述：

We have not been to the Great Wall for ages.No ,I don not remember how many years ago____I last
visited it.
A it was that
B was it that
C It was when
D was it when 答案选C　,为什么
,但是我觉得应该用when啊?

答

首先此句子表示的是时间，意思是我不记得我上次去是好多年前了。先行词是how many years 故排除A , B。为何用it was 而不是was it ，是因为前面有一个how引导的问句，故用的是it was . 例如 How much it is ? What time it is ?而不是How much is it ? What time is it ?
希望能帮助你

答

答案这不就是WHEN吗

答

是的,答案应该是C
如果是：i do not remember the year___ i last visited it,则为when
但它这里是祈使句,how many years ago it was,when i last visited it.

答

是没错啊，是用when，其实你只要把句子拆分下，
how many years ago
when I last visited it. 做状语。
前面 I don't remember (后面是个宾语从句，既整个句子做宾语，由how引导)，但是你想如果什么都不加，也就是 how many years ago算个完整的句子吗，不算吧，他只是个带有状语成分的短语，所有需要加上主语和谓语 it was，整个从句才完整，然后宾语从句必须使用陈述句的语序，所以要排除D

We have not been to the Great Wall for ages.No ,I don not remember how many years ago____I lastvisited it.A it was that B was it thatC It was whenD was it when 答案选C ,为什么,但是我觉得应该用when啊?

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We have not been to the Great Wall for ages.No ,I don not remember how many years ago____I lastvisited it.A it was that B was it thatC It was whenD was it when 答案选C　,为什么,但是我觉得应该用when啊?