Linda didn’t go to school yesterday because she had toher sick mother at home.A. look atB.

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。