Can and could

1. When I was young, I play the guitar: it was too difficult for me!

2. Her grandmother was bilingual: she speak both English and Spanish.

3. Yesterday, Peter do that exercise alone. So, he called me for help.

4. In 1950, people use mobile phones.

5. When his mother was young, she skate but she can’t do it any longer.

6. We open the door: it was locked from the inside!

7. In 1900, people watch TV.

8. Mary’s grandfather play chess and he was the best!

9. In 1945, people play video games.

10. But they play chess!