What're you writing on your desk?你趴在桌子上写什么呢

今天的几个句子是有关作业的：1.I am doing a paper .我写一篇论文。2. Could you help me for my paper?你能帮我写篇论文吗3. You'll get in trouble if the teacher finds out about it. 被老师发现就不好了。