题目

句型转换 （1） Jack has some comic books at home (改为一般疑问句) Jack comic books at home? （2） Mr. Wu is our English teacher(改为否定句)Mr Wu our English teacher. （3） Do you often have breakfast at home?(用Kitty替换主语you改写句子) Kitty often breakfast at home? （4） I want to be a singer some day.(对划线部分提问) you want to be some day? （5） Is David from England?(同义句)David from England ? 正四面体ABD的棱长为1，棱AB∥平面α，则正四面体上的所有点在平面α内的射影构成图形面积的取值范围是 [　　] A． [，] B． [，] C． [，] D． [，]