题目内容
【题目】
It was the key to the door that they ____ yesterday.
A. searched for
B. looked out
C. watched out
D. went into
【答案】 A
【解析】句意:这就是昨天他们要找的房门钥匙。search for表示“寻找”,符合语境。look out表示“当心,注意”,相当 于watch out; go into表示“从事”。
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