You must have waited here for a long time ,___________you?
#65489
A
mustn't
B
didn't
C
haven't
D
hadn't
推荐题目
--- a month do you do voluntary work ? ---Twice a month.
#59864
A
How long
B
How many times
C
How much
D
How often
Your sister must be helping the little girl with her homework, _______ ?
#64576
A
needn’t she
B
mustn’t she
C
isn’t she
D
must she