At first the speaker was referring to the proble
公共英语
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At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly _________ to another subject.
A) committed B) switched
C) favoured D) transmitted
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选B
switch是不及物动词,后接to,表示“转到,转向”;commit意为“犯(罪)”;favor的意思是“赞成”;transmit的意思是“传送,传递”。
句意:这演讲者开谈该国的污染问题,中间却突然转到了另一个话题。
