问题
选择题
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
答案
答案：C
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。