---I think Miss Lin must be in the library. She said she would go there.---No, she __________be there. I have just been there.
Peel the potatoes first, and then_________.
He is a very ____student. He does homework _______in our class.
—When are you going to London?—___.I may go there next Tuesday or next Thursday.
It’s good for you ____healthy food and _____more exercise.
We should ____our classmates because they are our friends.