◎ 题干
—Could I clean the bedroom for you?
—No, thanks. I              it myself.

[     ]

A. cleaned
B. have cleaned
C. was cleaning
D. had cleaned
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Could I clean the bedroom for you?— No, thanks. I it myself. [ ]A. cleaned B. have cleaned C. was cleaning D. had cleaned …”主要考查了你对  【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。