Actually it should look like this (cars, airplanes, trains, etc.).
But if the sentence ends with an abbreviation, the single period will serve to end the sentence, as in cars, airplanes, trains, etc. You do not use double periods.
You can, however, use a question mark or exclamation point after a period that ends a sentence. Were you talking about cars, airplanes, trains, etc.?
If this looks unusual, it is because abbreviations, such as etc., are generally avoided at the ends of sentences.
In modern English usage, yes.
With the exception of capitalizing the first letter of the sentence and a period at the end, the sentence is correct.
After the parenthesis, ie: Jane (a timid girl) walked slowly to school. or Jane walked slowly to school (a big high school). when it is the last part of the sentence you place it inside Jane walked slowly to school (a big school.)
after
Yes, "He poured water into the glass." is a grammatically correct sentence as long as the first word is capitalized and there is a period at the end.
Yes it is. The sentence "This will be an exciting month for me" is absolutely correct (it needs a period at the end, of course). But "a correct grammar" is not-- you want to ask whether it is "grammatically correct," or to be simpler, ask whether it is "good English."
Yes, A period, question mark or exclamation point is the definite end of a sentence. One should always place a period at the end of quotation marks. Hope this helps.
Use a period inside of the closing parenthesis to indicate that the sentence within the parentheses is ending. Use a period outside of the closing parenthesis to indicate that the sentence in which the parenthetical occurs is ending. Example: This was published in 1968 (Mary Jenkins looked it up.). or This was published in 1968. (Mary Jenkins looked it up.)
Parenthesis go before the period. The period signals the end of the sentence.
It will be placed at the end of the sentence iand after the parenthesis. It will define that the sentence is concluded
No one period is sufficient.
After the parenthesis.
outside
After the parenthesis, ie: Jane (a timid girl) walked slowly to school. or Jane walked slowly to school (a big high school). when it is the last part of the sentence you place it inside Jane walked slowly to school (a big school.)
After.
after
With the exception of capitalizing the first letter of the sentence and a period at the end, the sentence is correct.
Yes, if the question is a complete sentence and the citation follows the question within the same sentence, you would typically place a period after the closing parenthesis of the citation to end the sentence.