问题
选择题
We are very annoyed ______ his mistake, because we have emphasized this for several times.
A．at/about
B．with
C．on
D．to
答案
答案：A
考查短语：be annoyed at/about 对什么感到生气，句意：我们对他的错误非常生气，因为我们已经强调了好几次。所以选A。
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