—You’re not good at biology, are you?—______.A. Yes, I’m not.B. No, I am. C. Yes, I am.
_________ two soccer games in our school next week .
I am very tired because I up late.
You will find you can enjoy so many books if you English.
Don’t come into the lab ________ you are asked to.
My uncle has been taught in this school _______ he was twenty years old.