33. The cathedral was built in the 19th century (cấu trúc câu bị động quá khứ đơn: S+was/were+V-pp+...+(by O)
34. Do you know the girl who has just gone out (mệnh đề quan hệ)
35. In spite of being a poor student, he studied very well (in spite of+N/V-ing=Although+a clause)