—Be quiet, Mr. Smith is coming.—Don’t worry. It _____ be him. Mr. Smith is much taller.A. mustn’t B. must C. can’t
Lin Feng has to make a living by himself because his parents have ______ for years.
—How do you like the talk show? —I think it’s ______, but some people think it’s so ______.
—With _____ did you watch the 2014 World Cup Opening Ceremony ( 开幕式)? —A friend of mine.
--- Tom, what do you think is the secret ____ writing in English? ---- ____ reading lots of English activities, you can improve it a lot.
Paul __________ go into the room. He __________ a key.