题目内容

As soon as the crew(船员) were attacked, the police______ to look into the matter.
A.set downB.set outC.set aboutD.set up
B

试题分析:考查短语辨析。Set down写下,记下;set out to do sth开始做某事;set about doing sth开始做某事;set up建立,设立,成立;句意:船员们一被攻击,警察就开始调查这起案件。因为横线后面是to look…,说明B正确。
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