2019年mpa考试英语真题——连词473

{01}— Hasn"t the thief admitted his crime by now?  
— No, ______ questioned many times.
A.if              
B.though          
C.unless        
D.once
解析：
本题选B。

{02}John thinks it won"t be long ____  he is ready for his new job.   
A.when    
B.after    
C.before    
D.since
解析：
本题选C。