题目内容：

It was not long _____he was born _____his mother died.
A.before;that
B.since;when
C.until;when
D.after;that
说明原因

优质解答

A
It wasn’t long before China began to take overall economic reform. long before 不久以后, before long 不久以前
意思就是在他死后不久他妈妈就死了