You can’t complain about being left out ______you don’t make any effort to share your joys and sorrows with others.

It’s generous _______ them to donate moneyto UNICEF. They think it important _______ them to help poor children go toschool.

are used all the time and unless yourecognize when an idiom is being used, what you read or hear ______ can easilybe misunderstood

Britain was mandated to _____ the former colony of German East Africa. [ ]

89. His term papers mainly _____ the history of social developments in Song dynasty.