He ___ without saying good-bye to them,
题型:选择题
问题:
He ___ without saying good-bye to them, for he always has good manners.
A.mustn’t have left
B.may not have left
C.shouldn’t have left
D.can’t have left
He ___ without saying good-bye to them, for he always has good manners.
A.mustn’t have left
B.may not have left
C.shouldn’t have left
D.can’t have left