71. In the big city, there are more schools and hospitals are available for its people.
72. Some people think that we should read extensively.
73. In my opinion, you should come back after you finish you studies abroad.
74. For another reason, I think it will be much more convenient for you to look after you parents as they are getting old.
75. Classes in our school usually finish at four in the afternoon.
76. I am so sorry that I won't be able to attend tomorrow's lecture on American history.
77. While 25 minutes is spent on sports, only 12 minutes goes into housework.
78. Maybe you forgot you spent the money on something else yesterday afternoon.
79. Good habits are the crosscut to success.
80. I was deeply moved by the young boy, because I know Lei Feng is still living in our hearts.