open the book。
we take a look the box.
they need some fruits.
he's got a pen.
you're good boys.
open the book。
we take a look the box.
they need some fruits.
he's got a pen.
you're good boys.
open the book。——don't open the book/do you open the book?
we take a look the box.——we don't take a look the box/do we take a look the box?
they need some fruits.——they don't need some fruits/do they need some fruits?
he's got a pen.——he hasn't got a pen/has he got a pen?
you're good boys.——you aren't good boys/are you good boys?
打开书
我们看一下箱子
他们需要一些水果
他得到了一支钢笔
我们是好孩子