all you have to do is look and wonder!

밑줄친 부분과 동일하지 않은 문장을 고르시오.
① what you have to do is
② all you need to do is
③ you have only to do is
④ all that you need to do is
⑤ you need to do all is답은 5번인데요...
왜 5번인지..
니가 해야하는 모든것들이나 너는 모든것을 해야한다랑 같지않나요??