题目内容
【题目】_____ in charge of two classes made Mrs.Li, head of Senior Grade 3, extremely tired.
A. Leaving B. Left
C. Being left D. Having left
【答案】C
【解析】left是过去分词,being left 则是动名词。本句谓语是made,但是缺了主语,所以选择being left,动名词可以作主语,过去分词则不行。
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