＿＿＿used to be thought that the earth was square. A．HeB．WhatC．ItD．That

题型：不详难度：来源：

＿＿＿used to be thought that the earth was square.

A．He

B．What

C．It

D．That

答案

解析

it作形式主语，代替真正主语that从句。

举一反三

＿＿＿＿four years since I joined the army.

A．There was

B．There is

C．It was

D．It is

题型：不详难度：| 查看答案

——　Was that the new comer who walked by?
——　＿＿＿＿＿.

A．It must be that

B．It must have been

C．He must be

D．This must have been

题型：不详难度：| 查看答案

I took ＿＿＿for granted that he would believe in us.

A．that

B．the thing

C．it

D．this

题型：不详难度：| 查看答案

He lived in poverty, and he couldn’t help ＿＿＿.

A．so

B．such

C．it

D．that

题型：不详难度：| 查看答案

＿＿＿＿＿is just like him to want to do something different from everybody else.

A．It

B．There

C．He

D．Who

题型：不详难度：| 查看答案