46. We can start the work next week _________ __________ (如果必要的话) .
47. __________ _________ __________ __________ __________ (就我而言) , things are going smoothly.
48. When you _________ _________ _________ (回忆，回顾) your own past to long ago, you are more likely to see things you should have or could have done.
49. ________ ________（平均）men smoke more cigar
ettes than women.
50. I admit that the money is very important, that is, we need to consider how to _________ __________ _____________ (拥有，占有) wealth.