Question

【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

Answer 1

【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。