문제 내용: 어법상 옳지 않은 것은?
선택지 1: All assignments are expected to be turned in on time.
선택지 2: Hardly had I closed my eyes when I began to think of her.
선택지 3: The broker recommended that she buy the stocks immediately.
선택지 4: A woman with the tip of a pencil stuck in her head has finally had it remove.