Chỗ nào sai thì mk in đậm

31. Last year, all students in my school have a wonderful school festival.

32. The new school year will begin next week so we are preparing books, notebook, and may other things

33. Her parents works as health workers in a big hospital in Hanoi. (2 ng` đt ko dùng s)

34. I am the smallest child in my family, my sister are five years older than me.  (sai tobe)

35. Ours family often enjoy outdoor activities together.   

36. Did you saw a crocodile in the zoo yesterday?   (sai đt)

37. He does not live in his parents and his sisters.     (vô lí)

38. There are a musical show before the football match.   (sai tobe)

39. Mine house is not very large but nice.  (MIne thiếu sở hữu cách "Mine's")

40. Yesterday, I ate bread and drink a glass of milk.   (Thiếu "ed" ) 

31. Last year, all students in my school have a wonderful school festival. → had <last year ⇒ QKD>

32. The new school year will begin next week so we are preparing books, notebook, and may other things. → notebooks <số nhiều ⇒ thêm s>

33. Her parents works as health workers in a big hospital in Hanoi. → work <her parents ⇒ work để nguyên>

34. I am the smallest child in my family, my sister are five years older than me. → is <my sister ⇒ số ít>

35. Ours family often enjoy outdoor activities together. → Our <our family; our ko thêm s>

36. Did you saw a crocodile in the zoo yesterday? → see <Did + S + V<nguyên>?>

37. He does not live in his parents and his sisters. → with <live with sb: sống với ai>

38. There are a musical show before the football match. → is <số ít>

39. Mine house is not very large but nice. → My <ko dùng mine ở đây>

40. Yesterday, I ate bread and drink a glass of milk. → drank <yesterday ⇒ QKD>