Answer: 1- She ha(sn’t) decid(ed) what she wants to do with her life. 2- The teenagers in Mrs. Nestler(’s) classes are all 15-17 years old. 3- He should(’ve) (listened) to her the first time she explain(ed) the directions. 4- My friend(’s) house is big(,) red(,) and expensive. 5- What time (are) we (going to) go to the mall?
Explanation: PARENTHESES ARE THERE TO MAKE OBVIOUS WHAT SHOULD BE CHANGED. DONT PUT PARENTHESES LOL. anyways hope this helps!!