Fill in the blanks

18. My mother (watch)..............don't burn sevesal times
19. I (watch)............Iron man last night
20. My father (meet)...................my teacher before
21. My brother (meet)...........his old friends yesterday
22. He (go)..............to Paris last summer
23. She (never,go)...................to Paris
24. Phong (finish) ......................his homework recently
25. My friend (finish).................his essay three days ago