.We were all waiting for you .You _____f
题型:选择题
问题:
.We were all waiting for you .You _____for the seaside by yourself without leaving a message.
A.mustn’t leave
B.shouldn’t have left
C.couldn’t have left
D.needn’t leave
.We were all waiting for you .You _____for the seaside by yourself without leaving a message.
A.mustn’t leave
B.shouldn’t have left
C.couldn’t have left
D.needn’t leave