書き換えの形の指定は無いのかしら ① If it were not for air, no one could live. Were it not for air, no one could live. WIthout air, no one could live. If there were no air, no one could live. このいずれかかな ②If it had not been for the accident, he could have been an excellent baseball player. Had it not been for the accident, he could have been an excellent baseball player. But for the accident, he could have been an excellent baseball player. If the accident hadn't happened, he could have been amn excellent baseball player. このいずれかかな