As far as we know, half of Canadian teenagers do not get enough sleep on school nights, _____?
#64802
A
do they
B
don’t they
C
don’t you
D
isn’t it
推荐题目
----________ shall we paint the walls?---- I prefer white. It makes us feel calm and peaceful.
#60252
A
How
B
How often
C
Why
D
What colour
-Did you go to Jack’s birthday party? -No, I ____
#60351
A
wasn’t invited
B
am not invited
C
haven’t invited
D
didn’t invite
She must have arrived there yesterday,_____?
#64684
A
mustn’t she
B
needn’t she
C
hasn’t she
D
didn’t she