The Deskmates 同桌
Deng Lin and Li Ming are deskmates, and they are good friends. Deng Lin is very clever, while Li Ming studies very hard. In the mid-term, Deng Lin got 100 marks in English while Li Ming got only 70.
Deng Lin was so proud that he was getting lazy. He began to play games after school instead of doing his homework. Li Ming, however, made up her mind to work even harder. She went over her lessons deep into the night. In the final exam, their marks completely changed!
2.make up one's mind：下决心