请你做一小时的演讲并回答问题,用英文怎么说

Dear Humffman:
This is Hua Li,one of the Organizers of World Economic Forum.We sincerely invite you to give a one-hour speech and answer some questions for audiences at Beijing National Science and Technology Park at 12nd of April 2013.We would be very pleased if you could attend.
Hope hear from you soon.
Yours sincerely,Hua Li.

Speech for an hour then answer the quertions.

Please make a speech for an hour and then take the questions in the end.