题目内容
________ used to be thought that the earth was square.
[ ]
A.
He
B.
What
C.
It
D.
That
答案:C
解析:
解析:
|
it作形式主语,代替真正主语that从句。 |
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题目内容
________ used to be thought that the earth was square.
He
What
It
That
|
it作形式主语,代替真正主语that从句。 |