— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It’s just seven o’clock. It’s too early.

——Dad, must I finish my homework today?------No, you         . You may do it tomorrow.

—I visited France last year. —That         interesting.

He ______ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.

 —Must the government of Philippines (菲律宾政府) say sorry to China？—Yes, they __________. Their behaviour has deeply hurt Chinese people.