问题
They started working on the show two months ago,didn’t they—___________. A lot of work needed to be finishedbefore the show.
A:Yes, they did
B:No, they didn’t
C:Yes, theydidn’t
D:No, they did
B:No, they didn’t
C:Yes, theydidn’t
D:No, they did
正确答案是：
