—Shall I take a taxi?
—No, we_____________. It’s not far from here.
A. shouldn’t B. mustn’t C. needn’t
—Oh, my God! I can’t find my key to the office.
—Don’t worry. Perhaps it______________ in your home.
A. left B. has left C. was left
—Alice, would you mind not playing the guitar? I ___________on the phone.
—Oh, sorry, mom.
A. talked B. was talking C. am talking
—Doctor, ____________should I take this medicine?
—Twice a day.
A. what time B. how much C. how often
Chinese people complain that the price of the apartment is getting_____________.
A. lower and lower B. higher and higher C. cheaper and cheaper
You won’t feel happy at school___________ you get on well with your classmates.
A. though B. unless C. because
