Choose the correct options

1. When Steve was young, he
   [could|was able to]
   easily do all yoga asanas.
2. The fire was everywhere but the kids
   [could|were able to]
   leave the building.
3. When my brother was five, he wore glasses because he
   [couldn't|wasn't able to]
   see well.
4. James was ill all week long but on Saturday he
   [could|was able to]
   play in the match.
5. I
   [could|was able to]
   do homework even if I was short of time.