Find the sentences where the preposition on can be replaced by

Find the sentences where the preposition on can be replaced by the preposition about. Read them.
1nbsp; nbsp; Do you have any books on Russian history?
2nbsp; nbsp; Ive got lots of newspaper articles on David Beckham.
3nbsp; nbsp; There are a few newspapers on the table in my room.
4nbsp; nbsp; My sister was born on May 1st.
5nbsp; nbsp; You can get information on local bookshops from the Yellow Pages.
6nbsp; nbsp; Please leave your things on the chair over there.
7 Unfortunately, I havent got any information on Tony Brown in my diary.
8nbsp; nbsp; I will see my mum on Christmas Eve.
9nbsp; nbsp; I dont want to write an article on ecology.