Вроде вставить, если необходимо, предлоги, что ли

1) C is.the third letter of the English alphabet.
2) The picture is on .- page three.
3) The writer was the seventh child in the big family.
4) I take - Bus Forty to go to school.
5) The Browns are staying in - Room One of our hotel.
6) The English Room is on the third floor of the school.
7) The second story in the book is more interesting than the first.
8) The new text is in -. Step Two.