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）