When I was a child, I anyone 40 was old15/15Choose the best answer. When I was a child, I _____ anyone 40 was oldused to thinkwas used to thinkingused to thinkingwas used to thinkGiải thíchĐáp án A Dịch: Khi tôi còn là một đứa trẻ, tôi nghĩ bất cứ ai 40 tuổi đều già