2019年mpa考试英语真题——连词732

{01}Man must keep in mind that it will be years ______ the earth recovers from the damage he makes to it.
A.when            
B.before              
C.since            
D.until 
解析：
本题选B。

{02}Many students didn"t realize the importance of study _______ they left school.
[    ]
A.when      
B.until      
C.after      
D.unless
解析：
本题选B。