33. comfortable (adj): thoải mái (tobe + adj)

34. dangerous (adj): nguy hiểm (tobe + adj)

35. writer (noun): nhà văn/người viết (mạo từ + noun)

36. musician (noun): người soạn nhạc (mạo từ + noun)

37. He apologized for leaving so early (apologize for doing s.th: xin lỗi về việc gì)

38. The furniture was too expensive for me to buy it (S + tobe + too + adj + (for s.one) to do s.th: quá (cho ai) làm gì)

39. She has worked as a teacher for 2 years (started/began + to-V/V_ing `->` have/has + Vp.p; khoảng thời gian + ago: QKĐ `->` for + khoảng thời gian: HTHT)

40. This room should be clean every day (bị động với modal verbs: modal verb + be + Vp.p; you được lược đi trong câu BĐ)

33.comfortable 

34.dangerous

35.writer

37.I have to leave so early,i'm apologized

38.The furniture was too expensive that I didn't buy it

39.She started to work as a teacher for two year ago

40.This room should be cleaned everyday