.——What do you think of lecture given by Professor Thomas?
——Great. I quite agree to his idea that every one can make difference to society.
A. the, a
B. a, a
C. the, the
D. a, the
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(答案→)A. the, a
B. a, a
C. the, the
D. a, the
解析：这题考查冠词，第一空填the，特指Thomas教授做的演讲，第二空填a，考查固定短语：make a difference“有影响，有差别”。选A。