将下列的句子改为否定句,一般疑问句和特殊疑问句：

They don't sell school things in the shop.
Do they sell school things in the shop?
What do they sell in the shop?
The first class doesn't begin at eight.
Does the first class begin at eight?
What time does the first class begin?
Her brother doesn't have lunch in the middle of the day.
Does her brother have lunch in the middle of the day?
What time does her brother have lunch?
They don't have four classes every morning.
Do they have four classes every morning?
How many classes do they have every morning?
Wang Xin isn't playing games with his friends now.
Is Wang Xin playing games with his friends now?
Whom is Wang Xin playing games with?
如果有单词拼写错误,请谅解!