题目内容：

There are twelve months in a year.对划线部分提问 划的是twelve
I have a pair of sunglasses.(改为一般疑问句）
Does she have a lunchbox?(作否定回答)
They have some cameras.(改为否定句）
Be quiet,please!(改为否定句）
It's time for class.(改为同义句）
The nice bike is his younger brother's。（对划线部分提问）

优质解答

How many months are there in a year?Do you have a pair of sunglass?No,she doesn'tThey don't have any cameras.Don't be quiet,please!It's time to begin a class.