Tom, do you know there _________ a sports meeting next Thursday? –Sorry, I forgot to tell you.
You should really _______ smoking. It’s bad for your health.
Mum, may I have some cakes?——Sorry, there’s ____ left in the box. I’ll go and buy some for you tonight.
I think everyone needs the sun.—Yes, it can __ light and heat itself.
This book _______ be Tom’s. Look! His name is on the cover.