问题
选择题
I don't think she is a nice woman; I am _____ her empty talk.[ ]
A. grateful for
B. tired of
C. crazy about
D. concerned about
答案
答案：B
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I don't think she is a nice woman; I am _____ her empty talk.[ ]
A. grateful for
B. tired of
C. crazy about
D. concerned about
答案：B
(Ⅱ)f(x，y).