题目内容
4.______of the twins are middle school students.( )| A. | Both | B. | All | C. | Every |
分析 这两个双胞胎是中学生.
解答 答案:A.both"两者都",all"所有的都"(指三者以上),every"每个".根据题干中的twins可知是指两者;根据are可知,主语应为复数,应用both.故选A.
点评 首先要掌握这几个不定代词的意思以及用法,然后结合具体的题目,就可以确定正确答案.
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