After submitting written exam(proposal), the oral exam for presentation should be prepared. Here I wrote some tips when you prepare oral exam. 1. keep the time for presentation - The presentation time can be different by school and depts. In my case, I had to prepare 20-25 min of presentation with 20 slides. It can be short time considering you should present the introduction, method and results. As I wrote the background information in detail for proposal, I made very brief and quick introduction to focus on explaining the experimental design and results. 2. Prepare the answers for the questions from committee member - It's important to guess which questions the committees are gonna ask. You can practice the presentation to your lab members or friends to get as many questions as possible. If you prepare the questions, you will not get stumped.