问题
选择题
I 
can't sing________dance, ________I can play the piano.[ ]
A. but; or
B. or; but
C. and; or
D. or; and
答案
B
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I can't sing________dance, ________I can play the piano.[ ]
A. but; or
B. or; but
C. and; or
D. or; and
B