–Look at that girl! Is it Susan? --No, it _______ be her. She has gone back to her hometown.
It’s too hot in the classroom. We can’t_________ it. So we all_________ up and go out of the classroom.
She__________ at home now.
He’s a good student. He________ late for school.
I have nothing________ but________ computer games.
We’re trying to do __________ work with _________ time than before.