In the past few years there ________ great changes in my hometown.
—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