81.  I don't know who is right and why.

82.  That day morning, the forth class is the Geography Lesson.

83.  The teacher asked us: "What is the highest lade?

84.  " I said: "The Bei Jiy Er ke is the highest lake .

85.  Soon I said:"the Tanganyika Lake is the highest lake."

86.  that afternoon, the second class is the Music lesson.

87.  At the end of the Chinese test, a classmate asked me a question , I told him my answer, He believed my answer and changed his answer, though my answer is not right, but Mr Zhu often said this answer is right, After the test, Mr Zhu said this answer is wrong, I was quite sorry to my classmate .

88.  The second tests is sport's one thousand metres run.

89.  Next Wednesday is my the seventeeneth birthday.

90.  Because my learning efficiency is unfit for now.