The boy has to stay at home to look after his litter sister, __________?

We can hardly tell what life without the Internet will be like in the future, _________?

----She didn’t come to school yesterday, did she? ---- ___________, though she was not feeling very well.

 —Could you please tell Lucy that I want to talk to her? —Sure, I will let her know as soon as she _______ back..

 ---Your cousin often disagrees with you, ________ he?---____________. We often have different opinions.