—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.

The problem is too difficult for him. He _______ solve it by himself without any help.

On Sundays ,the retired(退休的）minster_____ come to the farm and work with the farmers.

I have never heard______.

—Where___________I meet you tomorrow morning ?—I haven’t decided the place. But I’ll call you soon.