中文谷–Withthefailureoftheexperiment,wehavereachedadeadend.-...
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問題詳情：
–With the failure of the experiment, we have reached a dead end.
--Cheer up! Many good things would never have happened if the bad events first.
A. don’t happen B. didn’t happen C. hadn’t happened D. haven’t happened
【回答】
C
知識點：動詞時態與語態
題型：選擇題
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