单选题 It is true that he is not clever, ______ he is very diligent.
  • A. yet
  • B. but
  • C. nevertheless
  • D. still
【正确答案】 B
【答案解析】It is true that...but是一个句型，意为“诚然……但是……”。如：It is true that this task is very difficult, but we will fulfil it in time. “诚然这项任务很艰难，但我们一定按时完成。”