2019年mpa考试英语真题——虚拟语气163

{01}I was really anxious about you. You _______ home without a word next time.  
[      ]
A.mustn"t leave  
B.shouldn"t have left  
C.couldn"t have left  
D.needn"t leave
解析：
本题选B。

{02}If only the committee _________ the new environmental regulations and put them into effect as soon
as possible!
A.should approve          
B.will approve    
C.would approve      
D.would have approved
解析：
本题选C。