14．听到的短文内容，符合的用"T"表示，不符合的用"F"表示）： 17．Mr．and Mrs．Keller had three sons and two daughters． 18．Mr．and Mrs．Keller's sons worked in the post office． 19．Mrs．Keller learnt the news of her son's death on the phone． 20．Mrs．Keller stayed in hospital for two weeks after her son's death． 21．Mrs．Keller's elder daughter died when she was having an operation． 22．After her daughter's death，Mrs．Keller didn't dare to make phone calls． 23．With the doctor's help，Mrs．Keller's problem was solved in the end．
