问题
选择题
He tried to invite some famous pop stars to sing in the concert _____, but failed. [ ]
A. with free
B. for freely
C. with freedom
D. for free
答案
答案：D
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He tried to invite some famous pop stars to sing in the concert _____, but failed. [ ]
A. with free
B. for freely
C. with freedom
D. for free
答案：D