「in the U. S. 」で文が終わる時は「U. S. .」って書けばいいんですか？

「in the U. S. 」で文が終わる時は「U. S. .」って書けばいいんですか？

No.2 回答者： あいす。。。 回答日時： 2019/02/15 18:05

文末でもU.S.で良いんですよ！

No.1 回答者： marbleshit 回答日時： 2019/02/15 18:02

Period

 
The period is perhaps the easiest punctuation mark to master. It ends a sentence. Difficulty generally arises only when the period is used with other punctuation marks.
 
This entry consists of the following sections:
 
Multiple punctuation
Direct and indirect questions
Proper placement of the period with parentheses
Proper placement of the period with quotation marks
Abbreviations
One or two spaces at the end of a sentence
 
 
Multiple punctuation
 
If a sentence otherwise ends with a question mark or exclamation point, the period is omitted.
 
Correct: I've never seen Who's Afraid of Virginia Woolf?
 
Incorrect: I've never seen Who's Afraid of Virginia Woolf?.
 
Correct: He used to work at Yahoo!
 
Incorrect: He used to work at Yahoo!.
 
If a sentence ends with an abbreviation, the period used for the abbreviation also serves as the period for the sentence. This is true even if the abbreviation is contained within a quotation.
 
Correct: He is a vice president at Apple Inc.
 
Incorrect: He is a vice president at Apple Inc..
 
Correct: Laura said, “We will continue this tomorrow at 8:00 a.m.”
 
Incorrect: Laura said, “We will continue this tomorrow at 8:00 a.m.”.
 
 
Direct and indirect questions
 
An indirect question ends with a period, not a question mark.
 
Direct question: What is she doing tonight?
 
Indirect question: I wonder what she’s doing tonight.
 
Direct question: The question is, Does anyone support this legislation?
 
Indirect question: The question was whether anyone supported the legislation.
 
 
Proper placement of the period with parentheses
 
If a sentence ends with a parenthetical that is only part of a larger sentence, the period is placed outside the closing parenthesis.
 
Hotel rooms are likely to be in short supply throughout August (the peak travel period).
 
If the parenthetical is itself an entire sentence, the period is placed inside the closing parenthesis.
 
Their house was the largest one on the block. (It also happened to be the ugliest.)
 
 
Proper placement of the period with quotation marks
 
If a sentence ends with quoted material, the period is placed inside the closing quotation mark, even if the period is not part of the original quotation.
 
The president’s speech both began and ended with the word “freedom.”
 
Note, however, that if the quoted material itself ends with a question mark or exclamation point, the period is omitted.
 
Correct: Yesterday he asked, “Why is it so cold on Mars?”
 
Incorrect: Yesterday he asked, “Why is it so cold on Mars?”.
 
 https://www.thepunctuationguide.com/period.html