Complete the gaps with an appropriate word

1. She is excellent [ ] her job.
2. Can you tell the difference [ ] the twins?
3. Four people were arrested [ ] connection with the incident.
4. The guide showed us the house in [ ] Mozart composed his most famous opera.
5. John was so tired that as soon as he went to bed he fell soundly [ ].
6. There are a [ ] things I would like to talk to you about.
7. [ ] morning I bumped into Alexis, on my way to work.
8. I bought this amazing cactus plant that rarely [ ] watering.
9. The documentary was neither informative [ ] entertaining.
10. The first car went [ ] sale in 1893.