—Mum, I’ve been doing my homework for two hours.    I play computer games for an hour? —No, I’m afraid not. You’d better go out for a walk. It does good to your eyes.

This book _______ be Tom’s. Look! His name is on the cover.

--- _____ I use your ruler, Lingling? --- Sure. Here you are.

–Amazing! You ______come to the party in such a fancy dress.__ Do’t you know it’s a fashion?

According to our school rules, students ________ not carry mobile phones when taking a exam.