41.  You'll have a lot of trouble if you are not able to see .

42.  Besides, David had a lot of astonishing unique skill.

43.  But I had a lot of homework, then I stayed at home.

44.  And the students must understand that teaching is a red-eye, palm-sweaty job, the teacher has a lot of things to do .

45.  The ideal job I pursure is doctor because our country have lots of someplace , especially poor valledge and countryside, in which are shortage of medical equipments and necessary doctor .

46.  If you can't live long, it's no use to have a lot of money and other good things.

47.  Those who have little money but good health are equal to have lots of money and happiness and hope.

48.  From above facts these changes have a lots of reasons.

49.  It is clear that fake commodities have a lot of bad effect on our dialy life.

50.  He often has a lot of new and wonderful ideas, but the fact is that he often finds a new question before he leaves his office.