I think that something has to be done to stop the air from being polluted, ______ ?
#64578
A
doesn't it
B
don’t I
C
don't they
D
haven't they
推荐题目
I don’t believe that he will marry Kathy whom he doesn’t love at all,________?
#64595
A
do I
B
don’t I
C
will he
D
won’t he
—Does she ______ a knife? —No, she _________.
#60349
A
has; don’t
B
have; does
C
have; doesn’t
D
have; has