Today's English lesson

From EnglishPlus:There's AlwaysAn ExceptionApostrophes with Italicized or Underlined Items Letters, numbers, symbols, and words used as themselves are italicized or underlined. When these items are made plural, the plural is shown by adding apostrophe s to the underlined or italicized item. The apostrophe and s are not italicized or underlined. Some authorities make acronyms or