Giup e voiii////////////

37 If the boy didn't eat too many cakes,he wouldn't feel sick

(Câu ĐK loại 2: S+Vpast+O,S+would/could+V)

38 The school was built in 1990

(Câu bị động thì QKĐ : S+was/were+P2+(by O)

39 That newspaper,which I bought yesterday,is mine

(Đại từ qh which thay thế cho tân ngữ "it")

40 Because of his carelessness,Tim lost his job.

(Since+S+V+O=Because of+Ving/N : vì)