I need help with this letter:
Thank you very much for the invitation to interview for the Marketing Intern postion. I appreciate the opportunity and I look forward to meeting with CEO, John Smith on Tuesday April 23rd at 12:00 PM (afternoon), on 300 xxx Ave. Orinda, California 94xxx. If address is not correct can you please let me know in advance?. Thank you very much.
Is there a way to ask for an address in a more polite manner? and do I need a period after question mark (?)? if not what about capitalization after question mark?
According to http://grammar.ccc.commnet.edu, "when a question constitutes a polite request, it is usually not followed by a question mark. This becomes more true as the request becomes longer and more complex: Would everyone in the room who hasn't received an ID card please move to the front of the line."
So what a question that constitutes a polite request of an address in the above letter (one that wouldn't need the use of a question mark)?
The question mark is fine. You are asking a question, not phrasing a demand as a "polite request."
A question mark, like an exclamation point, ends a sentence properly. You do not add a period after either of those marks at the end of a sentence.
And, since it does end a sentence here, it is correct to use a capital letter to start the next sentence.
You do not need a comma after "CEO." And you should say "at" before the address.