C- Choose the correct option.
1- I had / was having a shower when the lights went out / were going out.
2- While we walked / were walking home, it started / was starting to rain.
3- When mum came / was coming home, dad made / was making dinner in the kitchen.
4- I found / was finding this interesting website while I looked / was looking for information on the internet.
5- The teacher came / was coming into the classroom while the students wrote / were writing on the board.