Can употребляется для выражения способности в настоящем I can speak English; для того, чтобы обратиться с просьбой Can you help me, please? или попросить разрешения Can I watch this film, Mum?

Could употребляется для выражения способности в прошлом I could play with my toys the whole day when I was a child; для того, чтобы обратиться с вежливой просьбой Could you help me, please? или вежливо попросить разрешения Could I open the window, please?

Раскройте скобки, употребив правильную форму глагола. В случае необходимости пользуйтесь словарем.

1. When Julia was five years old, she ____________ (count) to ten.
2. Peter is nineteen. He ____________ (drive) a car.
3. Andrew is three years old. He _____________ (not/write).
4. ____________ (I/take) this book, Mum?
5. ____________ (you/answer) the phone, please?
6. Ann _____________ (not/walk) because she has broken her leg.
7. Sew _____________ (not/cross) the street because there was a lot of traffic.
8. When I was two, I _____________ (not/read) a newspaper.
9. John ______________ (not/swim) very well, but he is taking lessons.
10. I _______________ (not/run) when I broke my leg.
11. _____________ (you/bring) me a glass of milk, please?
12. ______________ (I /watch) the late film tonight, Dad?
13. I looked for my keys, but I _____________ (not/find) them.
14. _____________ (you/sing) when you were a small child?