摘要：31．B 考查动词时态.从“How terrible! 知忘记带钱包了.故用过去时态.
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----Why do you look so worried?
----My computer broke down and my essay ______ unfinished since. 【河南省商丘市第一高级中学2010-2011学年第二学期高三第一次考试卷】【动词时态语态】
A. had left B. has left C. was left D. has been left
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—I’m sorry, I shouldn’t have been so rude to you.
—You ________ your temper but that’s OK. 【河南省漯河市九中2011届高考第一次模拟考试试题】【动词时态】
A. have lost B. had lost
C. did lose D. were losing
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Gov. David Paterson______ to account for his actions. If he can show that he did no wrong, he must do so. If not, he should resign. 【江西省抚州市2011届高三模拟考试】【动词时态】
A. has failed B. had failed C. is failing D. failed
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