―He’s never advised to achieve a balance between his job and hobbies, ________? ―Yes. His parents and teachers often offer him some advice.

The book was written in _______ easy English _______ even primary school students could understand it.

----“It’s too cold. Would you mind_________ the window?”  ----“_____. But don’t do it now.”

—We need a new leader for our Helping Hands Club，but I don’t know_______.—Why not Mary? She is always willing to help others.

 ---Tom had better stay at home, _____ he?----Yes, but he’d better ____ turn the TV on.