2019年mpa考试英语真题——连词397

{01}The government has taken some measures to solve the shortage of electricity, but it may be some time
________ the situation improves.
A.since  
B.when
C.unless  
D.before
解析：
本题选D。

{02}Allow children the space to voice their opinions,      they are different from your own.
A.even if          
B.until            
C.unless          
D.as if
解析：
本题选A。

{03}Jerry did not regret giving the comment but felt ________ he could have expressed it differently.
A.why  
B.how
C.that  
D.whether
解析：
本题选C。