Choose the correct word

6.    This is my grandparents’ house. They lived/ have lived here for more than 50 years.
7.    She bought/ has bought a new mobile phone two days ago.
8.    Did you see/ Have you seen Peter at the party last night?
9.    I read/ have read this book twice and I still find it very interesting.
10.    They didn’t play/ haven’t played very well yesterday. They lost the match