THE CORRECT ANSWER IS IT'S.DEFINITIONS

7.The correct answer is It's.Definitions: it's - contraction of it is ;its - possessive pronounExplanation: There is nothing in this sentence for it to possess. In addition, if you use the word its in this sentence, there would be no verb, which would make it an incomplete clause. "It is impolite to stare" is a complete sentence. Anh văn ôn 12Therefore it's is the correct choice.