The second question: No matter what the level of spoken English is,
Attitude is the most important! Whether you understand the question or not, you should seriously say the prepared answer. If you don't understand the question, you can ask the teacher again.
2, the preparation direction must be self-introduction+work-related (key! The MBA interview is to understand your background)
3, be sure to practice more, don't stage fright, self-confidence is the most important! You can practice simulation more with your family ~
Good luck landing ~