Tom has formed the habit of jogging_________ the tree-lined avenue for two hours every day.
48. She took her son, ran out of the house, and ______ him in the car, drove quickly to the nearest doctor’s office.
47. China’s winning the host of the Olympic was an exciting moment, ______ all Chinese will never forget.
46. He hesitated about the brake, otherwise the accident ______.
45. The population of China ______ to many times what it was in 1949, and most of its population ______ farmers.
44. Please tell me ______ you would like to have your coffee --- black or white?