You are Martin Parker, the president of the company. You have invited Professor John Clinton of Harvard University to give a talk in your company on March 5. Write a memo to William White, the Office Manager of the company,
1.informing him that the talk will be from 9 a.m. to 12 a.m. and the professor will need a slide projector and video
2.asking him to arrange accommodation for Professor Clinton on March 5
3.telling Kim to send a formal invitation to Professor Clinton