英语翻译进老师办公室之前请先敲门我打算在今天下午两点去看病在十一月二号,我想为约翰举办一次聚会我的父母正在桂林度假这是我

Please knock at the door before you come into the teacher's office.
I am planning to see the doctor at two o'clock this afternoon.
I want to hold a party for John on Nov.2nd.
My parents are on vacation in Guilin.
This is my first time to visit Shanghai Expo.