All the clothes donated by the citizens need cleaning thoroughly before being sent to the earth-stricken area, ______ ?
#64893
A
needn’t they
B
don’t they
C
didn’t they
D
shouldn’t they
推荐题目
—_______will you come back home from vacation?—In two weeks.
#64747
A
How often
B
How soon
C
How much
D
How long
You had one of your teeth pulled out yesterday, ______? 
#64939
A
had you
B
hadn’t you
C
did you
D
didn’t you