—How nice the building is! What is it for?—It _________ be a hotel. But I’m not sure.
He promised ______his old friend during his stay in Tianjin.
Look at my stamps. They are beautiful! You’ve got a wonderful_________.
You will be late for school________ you don’t get up early.
Be quick! The game will begin _________.
He________ an English club last year and has improved his English a lot.