Combine the following pairs of sentences using a 'preposition + whom / which' or a 'quantifier + of + whom / which'. (cẩn thận những câu là "Non-defining relative clauses" thì nhớ phải thêm dấu phẩy):
LƯU Ý: NHÌN KỸ ĐỀ RỒI MỚI TRẢ LỜI! TUYỆT ĐỐI KHÔNG COPY MẠNG VÌ CÂU HỎI CỦA MÌNH CÓ THỂ HƠI KHÁC!
19. I can assure you that David is a man. You can absolutely depend on him.
->...........................................................................
20. The person is sitting at the desk. You should talk to her about your problem.
->..........................................................................
19 I can assure you that David is a man on whom you can absolutely depend.
20 The person to whom you should talk about your problem is sitting at the desk.