—Listen! Someone is knocking at the door. Who _____it be?—It_____ be Tom. He phoned to visit me this evening.
Don’t worry. There’s _________ time left.
We’re tired because we have ________ yin.
--- How is he getting on with his spoken English? --- Great. Now he can speak English ______ his English teacher.
—________ do you surf the Internet? —Twice a week.
---___________ ? ---It’s cloudy.