Question

_______ those past years, we couldn’t help feeling sorry for our parents who never had a rest all the year round.

1. A.
   Looking back upon
2. B.
   Looking around
3. C.
   Looking out
4. D.
   Looking up

Answer 1

A
词义辨析。Looking back upon回顾；Looking around 向四周看；Looking out向外看；Looking up 抬头看。句意：回顾过去的这些年，我们对常年不休息的的父母感到抱歉。所以选A。