문제 내용: 어법상 옳은 것은?
선택지 1: My sweet-natured daughter suddenly became unpredictably.
선택지 2: She attempted a new method, and needless to say had different results.
선택지 3: Upon arrived, he took full advantage of the new environment.
선택지 4: He felt enough comfortable to tell me about something he wanted to do.