He must be helping the old man to water the flowers,______ ?
#65512
A
is he
B
isn’t he
C
must he
D
mustn’t he
推荐题目
_____ you _____ to go to the park when they were children?
#60389
A
Did, use
B
Did, used
C
Do, used
D
Do, use
It's the first time that he has been to Australia，________？
#64492
A
isn't he
B
hasn't he
C
isn't it
D
hasn't it
—The spacecraft has never been to the moon, ________ ? —Certainly.
#64559
A
has it
B
hasn’t it
C
doesn’t it
D
isn’t it