+ Look at the information about in and on. Then choose the
How many books are trein / on the world?
2 The first paperback books appeared in / on the 1900s.
3. Which of these superheroes first appeared in / on a comic
book?
4 The longest sentence in / on a work of fiction is 823 words.
5 Someone bought the Codex Leicester in / on 11 November,
1994