Question

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

Answer 1

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。