61.  I want to know which is right and why.

62.  By the way, I want to know means useful about " further" and " farther " .

63.  I used to swim when I was young.

64.  When I at ten , I started studying to write the composition.

65.  Yesterday, English teacher demanded us to write the weekly.

66.  Because this is the first time, I have no material, I have to write these.

67.  He said eight students' name , my name was in them sn8,13-6] , I thought I will be awarded, But it next ,Teacher Zhu asked us to carry the desk next Monday.

68.  At ten when I got to school.

69.  We are forced to leave school.

70.  So we had to match the sport-meeting .