There _________a lot of fish in the water.
We are short _________ energy and water_________ the overpopulation. A. of; because B. of; because of C. in; because
— Could you tell me _________ ? — Sorry, I don’t know. A. where are my socks B. where can I find my socks C. where my socks are
— Hello, this is Tom. Is Jack in? — Sorry, he _________to his uncle’s home. May I take a message? A. has been B. go C. has gone
— Hello! Could I speak to Mr. Liu, please? — Sorry. He _________ for a month. A. had been away B. was left C. has been away
— Do you mind my smoking here? — _________Look at the sign. It says “No Smoking”. A. Of course not. B. No, I don’t. C. You’d better not.