2019年mpacc考试英语真题——连词899

{01}It was not long_____ he got to know it.

A.when

B.before

C.after

D.until

解析：略
本题选B。
{02}. They are teachers and don"t realize the basic/primary rules and principles _____ to start and run a company.

A.in which

B.for whom

C.with which

D.of whom

解析：略
本题选A。
{03}I had hardly sat down_____ the telephone rang

A.than

B.when

C.as

D.after

解析：略
本题选B。