Smoking is bad for your health. You’d better _______.
I had my lunch half an hour ago. I’m not _____ hungry.
_____ you _____Huangshi since 10 years ago?
I ______my homework in my study the whole morning. I went nowhere.
____ was cooked by Mum. It was so delicious.
--We all know that paper is made ________ wood.-- Yes, we can also say that wood can be made ________ paper.