[题目]The students of Class Four are in the playground.A. run B. runs C. to run D. running 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】The students of Class Four are_______ in the playground.

A. run B. runs C. to run D. running

【答案】D

【解析】句意：四班的学生在操场上跑步。run动词，在句子谓语的位置上，因有are所以是现在进行时态，结构是be doing；故选D

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