2019年mba考试英语模拟题——连词575

{01}—How long is it _____ we last met?
—About five years. You haven"t changed much.
A.before
B.since
C.when
D.that
解析：
本题选B。

{02}Doing your homework is a sure way to improve your test scores and this is especially true _____ it comes to classroom tests.  
A.when
B.since
C.before
D.after
解析：
本题选A。