一些英语选择问题= the discovery of new evidence led to the thief bei

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/28 13:26:16

一些英语选择问题=
the discovery of new evidence led to the thief being caught 这句话中为什么不可以用the thief to be caught
the book was writen in 1946,since when the education system has witnessed great changes since when可以改成since then 为什么
I took it for granted why your son would study chemistry why可以改成that作it的同位语从句么?
you'll have to wait for one more week ,when the manager will be back from his trip中的when不能用until 来代替么?是不是因为用了until 之后不能用will了?
there are two rooms on the first floor,of which the smaller is used as a guest room. of which the smaller 为什么不是a smaller of which?
可以接虚拟语气的词有哪些?像suppose之类的
no sooner had he got into the room than the telephone rang中为什么要用than?
= =其实还有挺多问题的,先到这里,明天继续问.<

1、to be 和 being 的区别：前者表示动作；表示将要做的. 而后者表示状态或已做完的.
2、不能. 因为since 后面应该加一个表示时间的词、短语或从句；而since then是固定短语,意思是 “从那以后”,不符合句意.
3、不能.因为该句的句意是“我认为你儿子为什么学化学很正常”. 仔细想想,不是“认为学化学理所当然”,而是 “认为为什么学化学理所当然”. 这个不太好解释,慢慢想想吧.
4、首先,如果用until ,那马两个分句之间不能加逗号,所以不行；其次,如果用until那句意就变了,本局意思是“你得再等一周,那时经理就会旅行回来了”,而改为until句意就变成了“你得再等一周知道经理旅行回来” ；最后,就是你说的原因,不能再加 will 了 .
5、后面的句子是of which 引导的选择从句,当然以which 打头了,当然因为是二者其一,前面得加of ；还有,句中只有两者,得用定冠词 the.
6、guess think 之类的,但不一定都会接虚拟语气的从句
7、no sooner. than .是固定短语,意思是 “一.就.” "刚.就." ,你可以查查词典,固定短语没什么可多解释的,记住吧!

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