I think that something has to be done to
题型:选择题
问题:
I think that something has to be done to stop the air from being polluted, ______ ?
A.doesn't it
B.don’t I
C.don't they
D.haven't they
I think that something has to be done to stop the air from being polluted, ______ ?
A.doesn't it
B.don’t I
C.don't they
D.haven't they