问题补充：
The doctor looked the old man .
A. at…care
B. over…careful
C. up…carefully
D. over…carefully
答案：
A. at…care
B. over…careful
C. up…carefully
(答案→)D. over…carefully
解析：医生看病人，当然是检查，故用look over，而不是look at(看)、look up(向上看；拜访（某人）；查找)；后一空应该用副词做状语，修饰谓语动词，故选D。
