问题
选择题
Kate didn’t go to the movie last Sunday because she had to ________ her sick mother at home.
A. look at B. look up C. look after
答案
答案：C
短语辨析。look at看；look up向上看，查阅；look after 表示照顾的意思。句意：凯特上周日没有去看电影，因为她不得不在家照顾她生病的母亲，结合语境可知故选C