Помогите с английским Put in the if needed Example: Who is - J.

Помогите с английским
Put in the if needed
Example: Who is - J. R. R. Tolkien?
1) Do you know ...Taylors? They are a very nice family.
2) I think ...William Brown is ...brightest student.
3) Can you play ...piano?
4) I am afraid of ...dogs.
5)....First World War began in 1914.
6) Last year ...Jill visited ...Australia and ...USA.