It looks like you've provided a list of sentences, possibly for review, categorization, or correction. Here’s a breakdown of the sentences provided, along with any necessary comments or corrections:

1. They built that house five years ago. (Correct)
2. She bought a lot of flowers for her mother. (Correct)
3. The children eat all the vegetables and meat. (Correct)
4. Lien didn’t finish her homework. (Correct)
5. Ba can fix his bike by himself. (Correct)
6. He writes these books for the children. (Correct)
7. People use this cloth bag again and again. (Correct)
8. You don’t prepare your lesson before you go to school. (Correct)
9. Ha Long Bay attracts a lot of tourists. (Correct)
10. Thu has seen that movie twice. (Correct)
11. Mr Hung will buy a new bike for Minh on his birthday. (Correct)
12. Vinh rented a car last week. (Correct)
13. Mai does a test well. (Correct)
14. The teacher gives me mark 10 for my English test. (Should be "gives me a mark of 10" or "gives me a 10 for my English test.")
15. My mother doesn’t clean the floor every day. (Correct)
16. Mrs. Lan usually feeds the dog. (Correct)
17. Alexander Graham Bell invented the telephone in 1876. (Correct spelling of "Alexander")
18. Nam repainted the school gate last week. (Correct)
19. Can people use the train a lot? (Correct)
20. Christopher discovered America in 1492, not 1949. (Correction needed)
21. Has Minh seen the accident on the road? (Correct)
22. My father told me a funny story last night. (Correction needed: "the funny story" sounds awkward; "a funny story" is more natural.)
23. The policeman took Lam to the police station. (Correct)
24. Mr. Ha repaired this machine yesterday. (Correct)
25. My mother kept the kitchen clean. (Correction needed: "kept clean the kitchen" is awkward; should be "kept the kitchen clean.")
26. They have never eaten eggs. (Correction: "the eggs" could be simplified to "eggs" unless referring to specific eggs.)
27. Tim took Hoa to the chocolate factory yesterday. (Correct)
28. We do our homework every day. (Correct)
29. Mr. Thoi didn’t teach me English last year. (Correct)
30. People built this school two years ago. (Correct)
31. My mother took me to the zoo yesterday. (Correct)
32. Blair invented color television in 1928. (Correction needed: "a color television" is awkward; "color television" is standard.)
33. Did John give you these records last week? (Correction needed: "gave" should be "give.")
34. Our club holds meetings once a month. (Correct)
35. She doesn’t find anything in that box. (Correct)

Overall, most sentences were correct, but there were a few instances where minor corrections or clarifications were needed. If you have any specific tasks or questions related to this list, please let me know!