Bài 1: Sửa lỗi sai: 1. It was so long lesson that we could not finish it in one day. 2. Nothing can process data more efficient than a computer. 3. Wrapped in pretty green paper, he put the package on the table. 4. John bought some leathery gloves at the corner store yesterday. 5. I think I'll need to have my library's card renewed. 6. My mother bought some five-dollars-a-pound cheese at the supermarket. 7. John always arrives late for his chemistry class even though he leaves his dormitory in plenty of times. 8. The farmers could not find any buyers for these class of coffee. 9. People who exercise frequently have greater physical endurance than those who doesn't. 10. To face adversity, to solve problems, and overcoming difficulties all give one a sense of satisfaction.