题目内容
7.Jenny did the cooking for her family last Sunday.(改为否定句)Jennydidn'tdothe cooking for her family last Sunday.
分析 詹妮上周日给她的家人做饭了.
詹妮上周日没有给她的家人做饭.
解答 答案:didn't do.句中的did是实意动词do的过去式,表示做…,改为否定句需借助于助动词did后加上not缩写成didn't,后面接动词原形do,故答案是didn't do.
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,后面加动词原形.
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