题目内容
9.Her friend knew something about the car accident.(改否定句)Her frienddidn't know anything about the car accident.
分析 她的朋友知道这次事故的一些事情.
她的朋友不知要有关这次事故的事情.
解答 答案:didn't know anything.原句knew是know的过去式,借助于did构成否定,后加原形know,something需换成anything,故答案是didn't know anything.
点评 含有be动词,情态动词或者助动词have/has的句子转化成否定时在其后面加上not,一般实意动词的否定式,通常应根据不同时态和人称在实意动词之前加don't,doesn't,didn't等.
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