I prefer to in my spare time.A. singing… dancingB. sing… danceC. to sing... danceD. to

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(答案→)A. singing… dancing
B. sing… dance
C. to sing... dance
D. to sing…dancing
解析：考查动词用法。prefer doing … to doing…宁愿做……而不愿做……。句意：在空余时间，我宁愿唱歌而不愿跳舞。