题目

The citizens didn’t feel safe at all after several families had their houses ____ at night and a lot of things stolen.     A. broken into B. broken in C. to be broken into  D. breaking into 答案： A 宾语(houses)与宾语补足语(break into)之间有被动关系，因而宾语补足语应该用过去分词，故选A。break in为不及物的动词短语，不可用于被动。

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