In abbreviations (where every letter is capitalized), use an apostrophe to indicate that the "s" is not part of the abbreviation.
No.
Only if you're writing about their car, house, or something else they possess. Otherwise, if your signing a card or something, no apostrophe is needed. Now, "The Alvarezs" looks odd to me. It might be better if written "The Alvarez family".
A contraction is made of two words with an apostrophe. Note the apostrophe replaces a letter.
Yes, that is correct. Program belongs to year.
The word parents is a common plural noun. It requires no apostrophe.My parents gave their permission.If the word parents has a possession or belonging, it needs an apostrophe.I needed my parents' permission in writing.
No.
No, "hers" does not have an apostrophe. "Hers" is a possessive pronoun that indicates ownership or belonging without needing an apostrophe.
Only if you're writing about their car, house, or something else they possess. Otherwise, if your signing a card or something, no apostrophe is needed. Now, "The Alvarezs" looks odd to me. It might be better if written "The Alvarez family".
A contraction is made of two words with an apostrophe. Note the apostrophe replaces a letter.
No, the word "monet" does not have an apostrophe. It is spelled as "Monet."
Yes, the wage belongs to the year (as such) and therefore a possesive apostrophe is needed.
No apostrophe needed in the sentence "The turkey has two ears."
Because the caps lock.
No. Most style guides suggest that the apostrophe is not needed to indicate the plural.Other than these erstwhile exceptions, the apostrophe is an indicator of possession, not plurals. Unless there is a need to avoid confusion, you can write the plural of 7 as 7s.
True
No because the apostrophe doesn't belong. It is plural so no apostrophe is needed
Yes