CAN/ COULD/ BE ABLE TO

I love all sports and have always wanted to ____ play tennis.

• be able to

• can

Last year, at the age of 45, I decided to learn tennis. I was really happy when I found a teacher who ____ give me lessons and so I started.

• was able to

• could

After the first few lessons, I realized that I'd never _____ play this game.

• can

• be able to

One of the problems was that I _____ move fast enough because I'm not in good shape.

• couldn't

• wasn't able to

Another problem is that tennis is not easy to learn quickly. I hated _____ hit the ball over the net.

• not can

• not being able to

It was really frustrating! I learnt that I'll never _____ play tennis!

• be able to

• can

My 78-year-old grandfather ______ even turn on a computer until about two years ago.

• couldn't

• wasn't been able to

All that changed when he decided that he wanted to ______ use the Internet, and he did a course at his local adult education center.

• can

• be able to

Although he enjoyed the course, he ______ put into practice what he learned because he didn't have a computer.

• couldn't

• wasn't able to

For his birthday, I bought him a laptop so he can learn. Now he ______ use the Internet really well.

• 's able to

• can