We were badly treated in the hospital.
Don’t worry.The president has promised to your plaint at once.
A. look up
B. look into
C. look back on
D. look forward to
网友回答
A. look up
(答案→)B. look into
C. look back on
D. look forward to
解析：考查短语辨析。look up 查字典，look into 调查，look back on 回顾，look forward to 期望，句意：在医院我们被对待的不好，别担忧，院长已经答应了马上调查你的抱怨。所以选B。