◎ 题干
I've expected too much of Peter, but I am really ________ by what he has done. Now I begin to  wonder if I can still trust him.
[     ]
A. let down
B. put up
C. called in
D. given out
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I've expected too much of Peter, but I am really ________ by what he has done. Now I begin towonder if I can still trust him. [ ]A. let downB. put upC. cal…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。