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C. had known D. have knowing C if引導的虛擬條件句 If + 主 + did(were), 主 +would/should/could/might +動詞原形 If I were you, I would try it again. If he were free, he would go with you. 1. 如果我是你,我會再試一次。 ,我會買下這架飛機。 If he had been there, he could have seen the film If I had married her, I would have been unhappy. ,那我是很不幸的。 與過去事實相反的虛擬條件句 與將來事實相反的虛擬條件句 (通常有時間狀語 ) If he came here tomorrow, I would tell him about it. If he were to e here tomorrow, I would tell him. ,我會告訴他這件事 . ,我會告訴他 . If + 主 + did(were to /should do), 主 +would/should/ could/might +動詞原形 條件狀語的倒裝: 如果條件狀語中有 were, had, should時 , 可以倒裝成: Were / Should / Had +主 +其他 Were I you, I would try it again. Had he been there yesterday, he would have seen the film. Should it snow tomorrow, we wouldn’t go out. If I were you, I would try it again. If he had been there yesterday, he would have seen the film. If it should snow tomorrow, we wouldn’t go out. If you __________tomorrow, you _________ find the new manager working in the office. A. should e。 would C. will e。 might A If the parents ______at the hospital earlier after the accident, the child would have been saved. A. arrives B. arrive C. had arrived D. has arrived C I didn’t see your sister at the meeting. If she __________, she would have met my brother. A. has e B. did e C. came D. had e D If my lawyer _______here last Sunday, he _______ me from going . A. had been。 would prevent C. were。 would have prevented A If