Exercise 3. Complete the sentences using: can could can't couldn't were able to will be able to won't be able to2. Luckily the weather was great, so we ... have a picnic.3. My cousin ... swim when he was three, but I still ... .
2.Luckily the weather was great, so wewere able to/ could have a picnic.
3.My cousin could swim when he was three, but I still can’t.