12. B 13. C 14. C 15. A 留学生包对，望采纳，谢谢。
为你解答。 41、C 42、C 43、D 44、A 45、B 46、D 47、C 48、A 49、D 50、D 51、A 52、C 53、D 54、D 55、B 56、C 57、A 58、D 59、B 60、C
An order——command remarl——comment ordinary——common a specially trained soldier——commando Trade，business——commercial Noisy，disorder——confusion Understand——comprehension Make more difficult——complicate A punctuation mark——comma...
31. Do you have a red schoolbag? 32. What does Helen have? 33. They don't have a basketball. 34. Does Cindy have a yellow jacket? Yes, she does. 35. 祈使句：Don't play soccer after school.
DCCDD 希望对你有帮助，满意请及时采纳， 你的采纳是我回答的动力！
Dear jack, I am very glad to tell you something about my school life. My home is very far away. It takes me half an hour to cycle to school everyday. We start off the day by doing morning exercise and the lessons begin at eight...
你找到level5的答案了吗？我网上搜的都不对啊，我也是第一单元是I didn't recognize you