20. For the new position, I am going to have my English teacher as a ______ because she knows me well. (A) substance (B) fragrance (C) tolerance (D) reference

36. Which of the following is NOT true according to the passage? (A) There is a relationship between overweight and colorectal cancer. (B) Colorectal cancer generally results from poor lifestyle choices. (C) Bowel cancer can be found easily at the early stage. (D) In Russia, colorectal cancer numbers were rising.