36.At Christmas, most people are going to hang decorations around their house 

37.I think Mary will win the English contest.

38.The skaters fall over because they dont know how to balance.

39.Last week,I made a poster for two classmates.

40.That is who the boy helped me yesterday.

(mình làm có gì sai sót mong mọi người thông cảm)

36. At Christmas, most people are going to hang decorations around their house.

37. I think Mary will win the contest.

38. The skaters fall over because they don't know how to balance. (xem lại đề)

39. Last week, I made a poster for two classmates.

40. That is the boy who helped me yesterday. 

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- Viết hoa `->` Đứng đầu câu

- 36: Tương lai gần: S + is/am/are + going to + V + O

- 37: Diễn tả suy nghĩ ở HTĐ: S + V(HTĐ) + O + will + V + O

- 38: fall over: ngã; HTĐ: S + do/doesn't + (not) + O; how to + V: cách làm gì đó

- 39: Quá khứ đơn: S + V2/ed + O

- 40: QKĐ; mệnh đề quan hệ: who thay thế cho the boy