—_____will your sister be back ?—In about two hours.

I don’t think The Flowers of War by Zhang Yimou is popular among teenagers, _________?

Many of your classmates dislike having to stay up late doing their lessons, _____? 

To get as much firsthand information as possible, inspectors will hold workshops and distribute questionnaires, ____?

—________ hours of sports do you do every week?—Six hours.