经典推荐：雅思考官口语P2话题9分范文40篇汇总第四弹(大杀四方)
You should say :
When it happened ?
Where it happened ?
What you did there?
And explain why you were not allowed to use your phone?
高分参考：
I'd like to talk about an experience that I was not allowed to use my mobile phone.A couple of weeks ago,a famous professor was invited to give a lecture, concerning the future development of auditing.He's from Stanford university. It’s said that he’s one of the best in the academic field.His lecture made a deep impression on me.
It's held in the lecture hall,which is located across the teaching building,about 5-minute walk away.It’s a beautiful place.from time to time,some brilliant minds would be invited there to pass on their knowledge and brilliant ideas.
As to what I did there.Well,basically,I just listened to the lecture,taking notes. It's fantastic,which opens my mind to new things,and widens my horizon.The professor is a very nice person,who’svery intelligent,knowledgeable,and has a good sense of humor.
Lastly,I'll tell you about why I was not allowed to use my phone.Before he started the lecture.We were asked to turn off the phones,and put them in a plastic bag.But it's understandable and totally acceptable.He did it to protect his own intellectual property rights.If I were him,I would do the same thing.
