问题补充：
单选题
The building around the corner caught fire last night. The police are now____ the matter.A.looking upB.looking outC.looking intoD.looking for
网友答案：
热心网友 1楼
C解析考查动词短语。look up 查询，查找；向上看；看得起；look out 当心；注意；警惕；朝外看；look into 调查；look for 寻找。题干意思是：街角的那座大楼昨晚着火了。警察们正在调查此事。选C。难度中等。
