19、What an interesting story, ______ ______?

18、Robert knows little Chinese, ______ ______?

17、That’s a model plant,______ ______?

16、Open the windows, ______ ______?

15、She’s been to Shanghai, ______ ______?

13、They’ll be on duty next Monday,______ ______?

12、He didn’t say you were foolish, ______ ______?

11、You may use his eraser, ______ ______?

10、We must study English hard or we can't be good at it, ______ ______?

9、He needs our help, ______ ______?