When men grow older, their hair often begins to fall out. When hair begins to fall out (41) old age, it is impossible to make it (42) again. I know a man who found (43) his hair was beginning to fail out on his fortieth birthday. He bought some ointment(药膏) and used it on his head. (44) ointment was very expensive. It (45) ＄50 for a small can ! He used the ointment on his head (46) a day. Every day he (47) into his mirror(镜子) to see (48) is hair was growing again, but the ointment was (49) good. Every day more and more hair fell out and (50) there was no hair left on his head.