пожалуйста помогите с английским)))

1. When I came, the lecture had already started .
2. They went to Moscow some days ago .
3. When I came, he was leaving, so we only had time for a few words .
4. When we came to the airport, the plane had already landed .
5. He suddenly understood that he had been travelling in the wrong direction .
6. Our teacher speaks many foreign languages .
7. Who is speaking with you?
8. He plays tennis.
9. I was going home when we met.
10. My son plays the piano.
11.They already translated this text last lesson.
12. You did this exercise last week.
13. We were discussing your plan yesterday at 10 o'clock.
14. It was raining when I went for a walk.
15.What did you do there?
16. I didn't write at the lesson.
17. Students were translating this text the whole lesson yesterday.
18. He has already come.
19. She said that she hadn't liked this book and had tried to find more interesting one.
20. The train is leaving at 10.21.
21. When I saw him, he was crossing the street.
22. While he was watering the garden, it began to rain.
23. Whe Ann finished her homework she turned on TV.