+20奖励求解三道英语单选（高三级别）马上回复Thatisthereasonhegaveusforcarryingouttheplan.答案是when但是我特别想选why为什么不可以呢?再麻烦给个用why的例子I'llneverforgeythedaysIstaye

Question

+20奖励求解三道英语单选（高三级别）马上回复
That is the reason___he gave us for carrying out the plan.
答案是when 但是我特别想选why 为什么不可以呢?再麻烦给个用why的例子
I'll never forgey the days ___ I stayed in your beautiful country
答案是when 可是我想选that啊,为什么选when呢?
Please put the magazines___
我想选in which they were可是答案是as they were 为什么呢?

Answer 1

第一题莫名其妙.
第二题,因为说的是一段时间,所有要用when(当.时).即,我不会忘了“当”我在你国家“时”的那些天.
三：因为如果是in which they were,那么句子就可以被重新组装成一个带"in"的句子.正例：
I forgot the book in which I saw the picture. 那么the book in which I saw the picture可以被组合成：
I saw the picture _in_ the book.
所以如果你这里填"the magazines in which they were"
那么组合后就得They were in the magazines.但是这样一来they和magazine就指的不是同一样事物了,所以是错误的.
例：
Give me the magazine in which they were introduced.
给我那本介绍了他们的杂志.
the magazine in which they were introduced组合得：
They were introduced in the magazine.