B. Rewrite the sentences using the words given.
1. I couldn't remember the password.
(able)
2. Are you able to use this machine?
(can)
3. If you work out every day, you will manage
to lose some weight.
(able)
4. It's impossible for me to pay the fee.
(can't)
5. I played a game of chess with my uncle
but I wasn't able to beat him.
(couldn't)​