Complete the sentences below with the correct indefinite pronouns

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Complete the sentences below with the correct indefinite pronouns.
1. I looked __________________ for my cat, but I couldn’t find it.
2. James called his friend, but __________________ answered the phone.
4. Let’s get __________________ to eat after our class.
5. Did you hear that? I think __________________ rang the doorbell.
6. __________________ was on time. No one was late.
8. Linda understood __________________ that her teacher said.
9. I had __________________ to go because all the shops were closed.
12. Was __________________ at home when you knocked on the door?