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 aftaid of ... dogs.
5) ... First World War began in 1914.
6) Last year ... Jill visited ... Australia and ... USA.