一、选择。(20分) ( ) 1.—How long have you China? —For three years. A. come back B. returned C. left D. been away from ( ) 2.The windows of the classroom every day. A. is cleaned B. cleaned C. were cleaned D. are cleaned ( ) 3. We look forward to from you soon. A. hear B. hearing C. heard D. hears ( ) 4. She plays basketball to join the club. A. good enough B. enough good C. well enough D. enough well