问题
选择题
It's difficult _____ a little girl to answer these questions. It's really nice ____ you to help her answer them. [ ]
A. of ; of
B. of; for
C. for; of
D. for; for
答案
答案：C
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It's difficult _____ a little girl to answer these questions. It's really nice ____ you to help her answer them. [ ]
A. of ; of
B. of; for
C. for; of
D. for; for
答案：C