【题目】当他们出去旅游时，房子被小偷破门而入。
The house was by the thief when they went out for a travel.

【答案】roke；into
【解析】break into固定搭配，意为“闯入”，本句中房子被破门而入，为被动语态，break应改为过去分词形式broken。因此答案为broken into。