1.We do eye exercises every day.
We don't do eye exercises every day.
Do you do eye exercises every day?
2.Mr.Brown has to go home on foot.
Mr.Brown doesn't have to go home on foot.
Does Mr.Brown have to go home on foot?
3.There is something wrong with the radio.
There isn't anything wrong with the radio.或 There is nothing wrong with the radio.
Is there anything wrong with the radio?
4.Li Peng’s already finished his homework.
Li Peng hasn't finished his homework yet.
Has Li Peng finished his homework already?
5.Lucy will stay there for some time.
Lucy won't stay there for any time.
Will Lucy stay there for some time?
6.Tom always goes to bed at twelve.
Tom doesn't go to bed at twelve.
Does Tom always go to bed at twelve?
7.He was reading when his mother came back home.
He wasn't reading when his mother came back home.
Was he reading when his mother came back home?
8.His younger sister can do some washing,too.
His younger sister can't do any washing,either.
Can his younger sister do some washing,too?
9.I’ve ever been to Beijing three times.
I have not been to Beijing three times.
Have you ever been to Beijing three times?
10.You’d better help him with his maths.
You don't have to help him with his maths.或You aren't going to help him with his maths.
Do you like help him with his maths?或Will you please help him with his maths?