成人英语三级

单选题The noise of the parade was very disturbing, which made it almost impossible for us to__________ on what the speaker was saying.

A．concentrate
B．be concerned
C．confirm
D．be dependent

参考答案：A进入在线模考
【参考译文】游行队伍的噪音非常烦人，使得我们几乎不能专心去听演讲者在说什么。
【答案解析】本题考查动词辨析。concentrate Oil，专心做……；concern，关心，担心；confirm，证实，确定；dependent，独立于……，不依靠……。本题答案选A。

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