Choose the correct options

1. I [met|was meeting] Lola when I [studied|was studying] at university.
2. I [did|was doing] the dishes while my sister [made|was making] a pie.
3. They [were|were being] on the way here when I [called|was calling] them.
4. While they [had|were having] fun, I [studied|was studying] for the exam.
5. The sun [shone|was shining] when I left home, so I [didn't take|wasn't taking] an umbrella.
6. I [did|was doing] shopping when my brother [called|were calling] me.
7. Sara [tried|was trying] to sleep when she suddenly [heard|was hearing] a strange noise.
8. Fred [listened|was listening] to the lecture when he [started|was starting] to feel unwell.