Поставьте предлоги где наобходимо

1)i don't think jane is aware__all the facts
2) MR Morgan's contribution__ the company's success was really remarkable
3) My flight was delayed so it was a good opportunity__doing some shopping
4)We took the opportunity__visiting the houses of Parliament during our trip to London
5)Nowadays we see a rapid change__the world__computer technology
6)The new project is beneficial__many children
7) I.Levitan was contemproary__ A.Chekhov.
8) The students benefited__the new library
9)If he doesn't work harded,he will never achieve__anything