我的笔友Bob一到我的家乡就爱上了这个地方．
My penfriend Bob fell in love with my hometown he came here．
课堂上Mr Black对Justin的回答满意，表扬了他．
Mr Black Justin's answer and praised him in class．
中国历史悠久，有许多名胜古迹．
China has a long history， and it has many ．
后天我爸爸要去南京出差．
My father will go to Nanjing the day after tomorrow．
为了保持健康，我们最好一周运动至少三次．
To keep healthy， we had better exercise three times a week．