Plastic bottles can be recycled but they need cleaning thoroughly, _______ they?
#64598
A
needn't
B
don't
C
mustn't
D
can't
推荐题目
The student must have been ill yesterday, ______?
#65069
A
mustn’t he
B
needn’t he
C
didn’t he
D
wasn’t he
I am glad that the Olympic Games will be held in 2008 in China, _______ ?
#65475
A
shall we
B
aren’t I
C
won’t it
D
won’t they
Will you please     computer games now? 
#60270
A
not play
B
not to play
C
don’t play
D
not playing
—      does your father wash his car?—Once a week.
#59928
A
How much
B
How often
C
How many
D
How long