我是班长，用英文给全班同学做一个口头通知

"All students please take note. There will be a talk on English learning at 2:10 p.m., this Tuesday, in Classroom 401. The speaker is Wang Jiang. Everyone is invited to attend. "(或 Everyone must attend 必须出席).
注: (1) 2:10 pm = 念 "Two Ten P.M."
(2) talk = 讲座/演讲/讲课
(3) 务必是指<必须出席>?

HI,everyone.May i get your attentions ,please?
There will be a course of lectures about how to learn English this week.The speaker is called Wang Qiang.And the course will be held in 401 Class.Last but not least,you must attend the course at 2:10 on Tuesday afternoon.
THank you

Hi ,everyone.Pay attention,please:
There will be a talk about learning English in Room401 at 2:10 this Tuesday.The speaker is Wang Qiang.Every classmates must attend.
Thank you all!