He____know the answer, but I’m not sure.

--- What kind of house do you want to have? Something big?  --- Well, it         be big --- that’s not important. 

—Look! The man at the gate        be our headmaster. He stands there every morning.—No, it        be him. He is holding a meeting in the office now.

----Shall I go and buy more food and drinks for the party ?----- No, we have prepared a fridge of those.That ____ be quite enough.

We can eat in the dining hall. But we _______ eat in the classroom.