1 . Only when we saw the photos about the air crash_____ how terrible it was.
A.had we known | B.we had known | C.did we know | D.we knew |
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2020-10-05更新
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3卷引用:黑龙江省哈尔滨市第六中学校2021届高三9月月考英语试题
2 . Slowly, and with the camera still held to my eye, I turned... and __________ (freeze). (所给词的适当形式填空)
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2010高一·全国·专题练习
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3 . It was not until I began to work that ________ how much time I had wasted.
A.did I realize | B.didn’t I realize | C.I realize | D.I realized |
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