“I think the teacher is wrong, _____?” “No, I don't think so.”?

　　A. don't you      B. don't I  ?   C. doesn't he      D. doesn't she 　　

Mr. Park, I know I am late, but please allow me to explain it to you, ________？

A. don’t you        B. do you               C. won’t you             D. will you

“I think the teacher is wrong, _____?” “No, I don't think so.”?

A. don't you    B. don't I  ?C. doesn't he    D. doesn't she

—I telephoned him twice and I couldn’t get through to him. 

—The line might have been out of order,     ?

A. don’t you          B. wasn’t it            C. do you                D. hadn’t it

—Lucy, you clean the room today, _______?

   —But I cleaned it yesterday. It’s Lily’s turn.

A. don’t you   B. do you              C. will you              D. didn’t you