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But for your help, I ______ my work yesterday.A、can’t finishB、wasn’t able to fi
But for your help, I ______ my work yesterday.A、can’t finishB、wasn’t able to fi
游客
2023-10-08
72
管理
问题
But for your help, I ______ my work yesterday.
选项
A、can’t finish
B、wasn’t able to finish
C、couldn’t finish
D、couldn’t have finished
答案
D
解析
介词短语but for意为“若非,如果不是”,是表示假设的方式之一,相当于if引导的虚拟条件句,要使用虚拟语气。主句中包含情态动词,而又是与过去事实相反,因此要用“情态动词+not + have done”表示发生在过去的事情,意为“本不能……却做到了。”,故选D。
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