Write the next sentence in this paragraph:

How to write a formal invitation
Write out dates.
Regardless of the type of event you're inviting your guests to, you should use a formal writing style on a formal invitation. This means spelling out dates and other words that are usually abbreviated.

Select from the following.
(I). For example, you should write " saturday, the nineteenth of november " instead of " saturday, november 19th. " you should also write " 253212 boston street " instead of " 253212 boston st..
(II). Your invitation should include the following dates and locations for those people attending : Event number table address country of origin date location area Write a letter to the invitees in advance. Whenever there's a formal event going on, you should check and know which envelopes are appropriate for that event..
(III). Also, regular etiquette means that your invitees may not understand the full breadth of the subject matter of the invitation, so avoid using this style on anything unrelated to your subject matter. Additionally, you should leave at least two things out for your invitees : Excuses..
(IV). If you want to communicate with your guests to accommodate whatever they're interested in, you should strive to keep formatting usage and writing consistent. For instance, if you're hosting a dinner, but are inviting guests to stay over, you should list each guest's actual name, including their sex, age, and a brief outline of the occasion..
(I).