请英语老师解析下题
问题描述：
请英语老师解析下题
24.---I don’t think your children could have beenused to the quick pace of life while working in Shenzhen,_____they?
---_____.They thought of returning to Changchun.
A.had ; Yes B.do ; Yes C.have ; No.D.were ; No
主句的谓语“think",反问为何不是”do"?
答
选 D.were ; No
当主句是I think,I believe,I suppose,I imagine,I expect时,【要反问从句】