美国留学签证面试时，签证官可能会问到的问题包括但不限于以下几点：
1. 个人信息
What's your name？
Where are you from？
What's your hobby？
What do your parents do？
2. 出国目的
How long will you study in the USA？
Why do you want to go to the United States for further study？
Why do you choose this university？
What will you study in the United States？
3. 财务担保
How do you plan to support yourself during your studies？
Can you provide proof of financial support from your family？
4. 教育背景
Which school are you currently attending？
What is your major？
What are the main courses you will be taking？
5. 工作情况
What is your current job？
How long have you been working？
What is your job title？
6. 未来计划
What are your career plans after graduation？
Do you have any job offers or plans in the USA？
7. 其他问题
Are you married？
Do you have any children？
Have you traveled abroad before？
Do you have any family in the USA？
Are you familiar with the American culture？
准备签证面试时，请确保您熟悉上述问题，并准备相应的回答。此外，保持自信、诚实和热情是至关重要的。祝您签证申请顺利!