1. I can speak English. 2. My father can't speak German. 3. Can you speak French? 4. My sister can't ice 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 railway station? 11. Could you help me? 12. I can't translate this sentence. 13. No one could help me. 14. Where can I buy bread near here? 15. Could your grandmother dance when she was young? - Yes, she could, and can do now. 16. I can use a computer.