—Have you got an iPhone 5?—No, many young people began to say “No” to it because of _________ follow-up service. By the way, I am a supporter of Chinese products.

What colour _____________ shirts?

— Could you give me some            on how to learn English           ?— Sure. Practice makes perfect.

—I’m too busy. Could you do_______ to help me?—Of course. I can do_______ for you if you want me to.

Most students like dinosaurs, but ______ of them know the story of dinosaurs.