Whose book is this?

这是谁的书？

My parents speak English perfectly.

我的父母能流利地说英语。

You live here in the city,don't you?

你出生在这个城市吗？

It's bleeding.You'd better go see a doctor about that cut.

它正在流血. 你最好为那个刀口去看医生。

This dress is made of silk,isn't it?

这件衣服用丝绸做的，是吗？

My brother wants to learn how to dance.

我的兄弟想要学习跳舞。