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选择填空题:_____________ ,john would not have failed.a.had he lis

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选择填空题:
_____________ ,john would not have failed.
a.had he listened to me.
b.if he listened to me.
请问选哪项,为什么?
另外 请解说 除相关时态构成需要以外其它什么状况要把have用作实义动词.listen 在这个句子可否作谓语动
词,为什么?
选择填空题:_____________ ,john would not have failed.a.had he lis
选A
had he listened to me是if he had listened to me的省略 句,也就是如果省略if 就要把had 提前,if he listened to me 只是普通的过去式.listen 在这里是谓语动词,当have翻译过来的中文意思是“有”时,它就是实义动词.如I have a lot of friends.更多的还是要你在学习时多用心体会.