问题补充:
Linda didn’t go to school yesterday because she had toher sick mother at home.
A. look at
B. look for
C. look after
D. look up
答案:
A. look at
B. look for
(答案→)C. look after
D. look up
解析:C 考查短语辨析。look at“看,看一看”; look for“寻找”;look after“照顾”;look up“查找(生字)”。根据句意,选C。