1. I know someone who wrote a book about Smith's life.2.Two of the biggest problems facing our society are:the crime and the unemployment.
3. Mr. went to the school to meet his daughter.
4. A friend of mine used to work as a reporter in Middle East. Which country is Manila the capital of? The Philippines.
6.Excuse me, can you tell me where the theatre is?
I'm not sure everything is right, but I hope it helps