题目内容

－Mike, why are you watching TV again?
－I _________ my homework.
A. finish             B. finished             C. have finished   
C

试题分析：句意：迈克为什么你又在看电视？我已经写完了作业了。动作发生在过去但强调对现在的影响，要用现在完成时态。该句迈克的话是想告诉上文我写成了作业所以才看电视，故选C。
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