一道简单的英语题目（急～～

Question

I think_____not difficult_______Enlish every morning.
A.that;keep reading B.it is;keep reading
C.that;to keep read D.it;to keep reading
请详细解释一下原因，xiexie！

Answer 1

选D
首先排除AC 这我就不用说了吧（如果用了根本就不成句，不符合英语基本类型）
那么为什么选D
首先看真正的宾语是什么？
应当是to keep readingEnlish every morning
而英语中由于句子过长充当宾语 就要用形式宾语来代替它 就用it
而形式主语呢就用it's（is在不同句子中也不一样）
那么句子就成了I think it not difficult to keep readingEnlish every morning

祝你学业顺利@！！！

Answer 2

I think_____not difficult_______Enlish every morning.
D.it;to keep reading

i think it是形式宾语，it代指后面的句子
还有就是difficult to do，keep doing

而且
这种句型不常用的、、、一般都是
I don't think it’s difficult to keep ……。

Answer 3

D
keep doing句型
it 做形式主语

Answer 4

D
It (is)+形容词+to do sth
keep+doing sth

Answer 5

D