问题
选择题
—What do you think of your math teacher?
—He looks serious, but he can make his classes ________. [ ]
A. boring
B. quiet
C. tiring
D. lively
答案
答案：D
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—What do you think of your math teacher?
—He looks serious, but he can make his classes ________. [ ]
A. boring
B. quiet
C. tiring
D. lively
答案：D