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.

I was still sleeping when the fire ___________, and then it spread quickly.

We all go to movies ____ Li Ming, he does his homework at home.[ ]

This is a boy .I don’t know name.

David is ___________ take this job. He is able to do all extra work.