Linda didn’t go to school yesterday because she had to her sick mother at home.
A. look at
B. look for
C. look after
D. look up
网友回答
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。