Chọn câu trả lời tốt nhất để viết lại các câu. 31. Every student is required to write an essay on the topic. A. Every student might write an essay on the topic. B. Every student must write an essay on the topic. C. They require every student write an essay on the topic. D. Every student should write an essay on the topic. 32. In spite of all our efforts, we failed in the final match. A. Although we tried very hard, we failed in the final match. B. We made all our efforts so that we could gain success in the final match. C. Whatever efforts we had made, we weren’t able to win in the final match. D. We failed in the final match as a result of all our great efforts. 33. He drives more carelessly than he used to. A. He doesn’t drive as carefully as he used to. B. He doesn’t drive carefully than he used to. C. He doesn’t drive as carefully than he used to. D. He doesn’t drive as carefully he does.