Очень нужно помогите кто сможет.
Correct the mistakes. Example: Ted asks are they from Africa. Ted asks if
they are from Africa. 
1. Neither Betty nor Susan met nobody there.
2. Why is Mr. White look so angry? What has happened?
3. I have never been to London. – So have I.
4. He said that he will visit his grandparents the next day.