题目内容
—The window is dirty
—I know.It ________. for weeks.
A.hasn’t cleaned
B.didn’t clean
C.wasn’t cleaned
D.hasn’t been cleaned
答案:D
提示:
提示:
考查考生对题千中句子的理解和对动词的时态和语态的掌握情况。动作的接受者为句子的主语时,谓语动词应采用被动形式;表示从过去延续到现在,且对现在产生了影响时,应该采用现在完成时。
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