初级

单选题

A．improve
B．expand
C．heighten

参考答案：A进入在线模考
improve意为“提高，改善”。

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1

A．aimed
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2听录音：{MP3:/imgcache/attached/media/20140409/20140409192105_0184.mp3}
Questions 
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When would they meet?
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3 When would they meet after work?
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