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
-----Li Ping told me that he overslept this morning. -----Oh, he rarely used to oversleep, ________?
#64945
A
usedn’t he
B
was he
C
didn’t he
D
did he
