2019年mpa考试英语真题——连词582

{01}— Did your father come back early last night?
— Yes. It was not yet eight o"clock ____ he arrived home.
A.before
B.when
C.that
D.until
解析：
本题选B。

{02}_____ you know your potential, you have to rely on many other people to get to where you are.
A.Since
B.If
C.While
D.Once
解析：
本题选D。