Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions.
Question 20. You may well have a PhD in philosophy, but to my mind you are both bigoted and racist.
A. tolerant B. open-minded C. biased D. modest
Question 21. Although the chemist’s initial experiment failed, she stumbled upon a strong new material in the process.
A. deliberately found out B. unexpectedly discovered C. seriously suffered from D. surprisingly exploded