was/were able to do vs could - ćwiczenia

Exercise 1: Complete the sentences with could(n’t) or was(n’t)/were(n’t) able to.

1. He twisted his ankle so he … to walk.
2. I … hear perfectly but I didn’t want to tell her what they were talking about.
3. I tried very hard but I really … remember the girl’s name.
4. The house was set on fire but the firefighters … to put the fire out.
5. My brother wasn’t very good at sports but he … dance very well.
6. Although I tried very hard, I … sing as well as my sister did.
7. I’m not very fit now but 10 years ago I … win in any tennis match.