2019年mba考试英语模拟题——连词552

{01}Experts are trying to work out a plan to deal with the problems caused by global warming________
it is too late.
A .when  
B.if  
C.before  
D.until
解析：
本题选C。

{02}You should try to get a good night"s sleep________much work you have to do.
A.however  
B.no matter
C.although  
D.whatever
解析：
本题选A。