1 . 早晨的新鲜空气呼吸起来很舒服。（主语+be动词+形容词+动词不定式）（汉译英）

2 . 以下每句话中有且仅有一个错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（﹨）划掉。
修改：在错的词下划一横线（__），并在该词下面写出修改后的词。
1. Walking up and down in the room, he waited for Tom impatient.
2. He prefers cycle to his office rather than drive all the way every day.
3. With two choice for his future, the son can also make lots of new friends to play music together at university.
4. Tom was so interested in the work that he loses track of time.
5. He is such a honest boy that all of us like him very much.
6. Go there by bike is a good and environment-friendly idea.
7. The old woman was about to make a fire to cook dinner while someone knocked at the door.
8. Be careful, or you will have your hands injuring.
9. I’ve told you everything which I know about the latest accident.
10. Despite of arguments now and then, Alistair loves his brother deeply.

3 . 我们当时正在上英语课，突然有人敲门。（be doing…when…）（汉译英）