49．wealthy替换 rich

48．seldom替换not often

47．for instance替换for example

46．occasionally替换sometimes /once in while

45．beneath替换under

44．get to one’s feet替换stand up

43．meanwhile替换at the same time

42．a handful of替换a little / some

41．be rushed off one’s feet　 替换be busy in doing

40．many a 替换many