EXERCISE 2. HÃY CHO BIẾT TỪ ĐỒNG NGHĨA HOẶC GẦN NGHĨA, TỪ TRÁI NGHĨA C...

9. Next time/you/prepare/lesson/careful/this time.A. Next time, you should prepare the lesson more careful than this time.B. Next time, you should prepare the lesson more carefully than this time.C. Next time, you should prepare the lesson carefully than this time.D. Next time, you should prepare the lesson careful than this time.