14. If the train had been carefully checked and maintained, the train crash might not _____ last
Friday.
(A) have occurred
(B) occur
(C) had been occurred
(D) to have occurred
詳解 (共 3 筆)
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If the train had bee...
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原本該..作，但未作到 should ...
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根據https://englishhom...
私人筆記 (共 1 筆)
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如果對火車進行了仔細的檢查和維護，那麼上...
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