Lisa was busy taking notes ______ Mark was searching the Internet for the information.

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问题 Lisa was busy taking notes ______ Mark was searching the Internet for the information.

选项 A、until
B、unless
C、while
D、if

答案C

解析 本题考查对连词用法的掌握。until意为“到……为止,在……以前,直到……才”;unless意为“如果不,除非”;while意为“当……的时候;然而”;if意为“如果”。这里是说丽莎正忙于做笔记,而马克正在互联网上查信息。故答案选C。
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