题目内容
2.The dentist says we should brush our teeth at least twice a day.分析 牙科医生说我们应该每天至少刷牙两次.
解答 答案:brush.
在情态动词的后面要用动词原形,根据"our teeth"以及首字母b,可知要用"刷牙"这个词,所以要用brush,故填brush.
点评 首先要仔细阅读句子,然后分析与空格有关的信息,结合首字母确定正确答案.
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