题目内容
18.They should stay at home every night,too.(改为否定句)Theyshouldn't stay at home every night,either.
分析 他们也应该每晚待在家里.
他们也不应该每晚待在家里.
解答 答案:shouldn't;either.原句含有情态动词should后加上not构成否定句,too换成either,故答案是shouldn't;either.
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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