Question

It is句型同义句转换

Answer 1

It is 句型常用于现在完成时的同义句替换。
例如：
1.It is three years since he came to this school.
同义句是：He has been in this school for three years.
2.It is ten years since his grandfather died.
同义句是：His grandfather has been dead for ten years.

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