Bài 5: Điền “ could” hoặc “couldn’t” vào chỗ trông trong các cấu sau. 1. When I was young, I _______play the guitar: it was t

Bài 5: Điền “ could” hoặc “couldn’t” vào chỗ trông trong các cấu sau.
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 1990, people ________ watch TV.
8. Mary’s grandfather ________ play chess and he was the best!
9. In1945, people ________ play video games.
10. But the ________ play chess!
11. Peter ________ play tennis last Monday: he had broken his arm!
12. When Ann was teenager, she ________ watch a horror film: it was too frightening for her!
13. Last Sunday, we ________ take any photos in the museum: it was forbidden.
14. Mozart ________ play the piano when he was 5.
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