题目内容
16.You cannot walk (not walk) on the grass.分析 你不能在草坪上行走.
解答 答案:not walk
根据句中的情态动词can以及括号里的单词可知,此处考查的是情态动词的否定形式,即:情态动词+not+动词原形;故填not walk.
点评 做本题时,需要掌握情态动词的否定形式.
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