It won't be long before和It is before long that的区别
问题描述：
It won't be long before和It is before long that的区别
_______he will go to the United States for further studies.
A.It is long before that B.It won’t be long before
C.It is before long that D.It will be before long that
答
It won’t be long before 这不会是很久以前
It is before long that 过不了多久
看明白了吗?