Помогите пожалуйста плиииз 494

1. I can speak English. 2. My father can't speak German.3. Can you speak French?4. My sister can't skate.5. Can you swim across the river?6. I can`t drink this milk.7. She can`t understand you.8. Could you swim last year?9. I couldn't ski last year but now I can.10. Can you tell me how to get to the station?11. Can you help me?12. I can't translate this sentence.13. Nobody can help me.14. Where can I buy bread?15. Could your grandmother knew how to dance when she was young? Yes, she still can.16. I know how to use a computer.