Your English teacher has never lost his temper, ___________ he?

—Are your parents at home? —No, they aren’t in. They _________ to Beijing.

The town government set up a modern hospital for the farmers, ________ it?

—How many students do you think are still on the playground now?—I am afraid there are few of them, ______?

— Tom’s never done extra work for his class, _______he?—_______. He is the laziest boy in his class.