2019年mpa考试英语真题——连词476

{01}Tom kept quiet about the accident ________ lose his job.  
A.so not as to  
B.so as not to  
C.so as to not  
D.not so as to
解析：
本题选B。

{02}— You look unhappy, my son?
— I"m wondering how long it"ll be          we come to China again.
A.since
B.when
C.before
D.after
解析：
本题选C。