—Whose schoolbag is this?—It ___________ be Mary’s. It has her name on it.
—__________ she sing English songs? —Yes, she can.
This box is __________ than that one.
—__________ do you go to the cinema? —Once a month.
Be quick, __________ you’ll be late for school.
—Hi, Mike, I’ve got a present __________ you. —Oh, it’s really beautiful. Thank you very much.