句型 He's / She's... — 英语选择题
题目
Sam 正在介绍家人：My dad is a teacher. My mum is a doctor. My brother is tall. My sister is short. 下列哪一句介绍是正确的？A. This is my mum. He's a doctor. B. This is my brother. She's tall. C. This is my sister. She's short. D. This is my dad. She's a teacher.