--- You may refuse my invitation , but you must explain why .  --- Oh, I must , _____ ?
#65028
A
did I
B
didn’t I
C
must I
D
mustn’t I
推荐题目
A Kangaroo scarecely knew anything about it, __?
#65294
A
didn't we
B
doesn't he
C
did he
D
does he
 _____ to blame him for neglect of duty? The president of the company is his uncle. 
#64998
A
What good it is
B
How good it is
C
What good is it
D
How good is it
——Do you think the question easy or not?—— _____ .
#65173
A
Yes, I do
B
No, I don’t
C
It is easy
D
Yes, it’s easy
-- _____________did your uncle leave his hometown ?--He ____________ for nearly twenty years.
#60219
A
When, has left
B
When, has been away
C
How long, has left
D
How long, has been away