___ funny___ you want to make a pen with a machine in it.Have a try.A.This is;that B.That is;that
问题描述：
___ funny___ you want to make a pen with a machine in it.Have a try.A.This is;that B.That is;that
___ funny___ you want to make a pen with a machine in it.Have a try.
A.This is;that B.That is;that C.It's;that D.It's;what
答
C.主语从句后置it代替that引导的主语从句