1、My brother is tall and thin .（对划线部分提问）划线部分：tall and thin
What does your brother look like?
2、Sam is good at playing the piano.(改为同义句)
Sam play the piano very well.
3、My brother wants to be a tennis star.(改为同义句)
My brother wants to be a famous tennis player.
4、Mrs smith is an english teacher.（对划线部分提问）划线部分：an english teacher
What does Mrs smith do? 询问职业用“what does sb do?"
5、I hope to hear from Mr green in japan (改为同义句)
I hope to hear Mr. green speaking Japanese.
希望能帮助到你!望采纳!谢谢~~~