题目内容
20.Listen!Mary in the next room.( )| A. | sings | B. | is singing | C. | sang | D. | sing |
分析 听,玛丽正在隔壁房间唱歌.
解答 答案:B.根据题干中的listen可知,玛丽现在正在唱歌,本句应用现在进行时.现在进行时的结构是:am/is/are+doing;又根据Mary是第三人称单数,应用is.所以本题应用is singing.故选B.
点评 本题考查时态的辨析,做题时应注意动作发生的时间,根据动作发生的时间来确定动词的时态.
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