Choose the correct options

1. They [had already resolved|already resolved|were resolving] the confrontation by the time Mr Brown suggested a solution to the problem.
2. I [was seeing|had seen|saw] my cousin at the family gathering last week.
3. Molly [had tried|was trying|tried] to convince them of the rightness of her decision for around two hours when she suddenly realised it was pointless.
4. Kate didn't pretend to be tired, she really [had working|worked|had been working] hard all morning.
5. That is the house [where|which|what] Michael was brought up.
6. This is my stepsister Mary [which|whose|whom] I have never met before.
7. I don't remember the exact time [which|when|what] we got acquainted with Mr Brown.
8. Jessica was the only person [who|whose|whom] opinion mattered to Mark.
9. You can easily achieve this goal. You just need to believe in your [abilitys|abilities|abilityies].
10. There was a large group of [person|persons|people] at the reunion.