71.  They tryed their best to put out the fire.

72.  During this period, they tried their best to teach us well, they are very conscientious, and they are our teachers, they are also our friends .

73.  Now, their practice has finished, they will be away .

74.  At the first week, all students are put their heart into study.

75.  they are not the same, what is their difference?

76.  The teachers on our school are very good, they are strict with the students and they also take good care of their students .

77.  In that day, people wear beautiful clothes and have dinner with their families.

78.  They tried their best to control the fire.

79.  This special festival is for the students to show how deep is their love to their teachers.

80.  In the morning of that day, the students put their presents on their teachers' desk, and they also wish their teachers in the class .