Children can play “trick or treat” games on ____in western countries.
Mr Wang is an excellent teacher. He is ______ to spend a lot of time explaining things to us.
She’s never late for class, ______?
It’s a lovely day today! ______ go out for a walk?
— Mum, may I have some cakes?— Sorry, there’s ______ left in the box. I’ll go and buy some for you tonight.
Our teacher told us that light ______ faster than sound.