题目内容：

改正以下英语句子的错误
1.The final assignment involves choosing a research topic,to read five sources,and to complete a ten-page research paper with footnotes and bibiography.
2.Working in a global corporation may be more difficult than to start your own consulting company.
3.The new position neither presents more challenges than the former job nor will she receive a higher salary.
4.Alberto will have to take courses in both technical writing and how to design graphics.
5.The director asked for the following information:the instructor's name,how many participants were enrolled,and the location of workshop.
6.The research study will consider the growing number of those people in the United State,why people are exercising less,and that the portions of food in restaurants have become stronger.
7.Because Peter has much experience in Powerpoint,we don't want her to do the training.
8.Their decision was based on extensive analysis,however,I disagree with it.
9.Ms.Mary is in charge of our computer system,she has a master's degree in information technology.