Multiple choice Its not my book, so it must be yours or hers. It's not my book so it must be yours or hers. Its not my book, so it must be yours or hers. Its' not my book, so it must be yours or hers. It's not my book, so it must be yours or hers. Reveal answer Fill a bubble to check yourself D Correct answer Explanation It's is the contraction for it is. Its is the possessive form.