. The main fact(or)s in human life are five: birth, food, sleep, love and death. (One could increase the number— add breathing for instance— but these five are the most obvious.) Let us ask ourselves our lives.
A. they play in what part
B. they play what part in
C. what part they play in
D. in what part they play
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A. they play in what part
B. they play what part in
(答案→)C. what part they play in
D. in what part they play
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