My mother doesn’t clean the floor every day

My mother doesn’t clean the floor every day. ð

16. Mrs. Lan usually feeds the dog. ð

17. Alexandar Graham Bell invented the telephone in 1876. ð

18. Nam repainted the school gate last week. ð

19. Can people use the train a lot? ð

20. Christopher discovered America in 1949. ð

21. Has Minh seen the accident on the road? ð

22. My father told me the funny story last night. ð

23. The policeman took Lam to the police station. ð

24. Mr. Ha repaired this machine yesterday. ð

25. My mother kept clean the kitchen. ð