写作：我的快乐秘诀 — 英语选择题
题目
你要写一篇题为 My Secret to Happiness 的短文，主题句已定为 My secret to happiness is spending time with my family. 下面哪个句子最适合作为短文的结尾句？A. My family is very big. B. That is why staying with my family makes me happy. C. I watched TV last night. D. My father works in a hospital.