91. They are going to erect(树立) a monument _____ memory of the men who offered their lives in defense of their country.
The war against Iraq _______many deaths, which _______the world feel sad
The two boys look so much alike _______no one can tell them apart.
I was so crazy _____the football that I'm made ______captain of the school team.
-----Will you help me do this? -----____________, do it yourself.
Some pre-school children go to a day care center, __________they learn simple games and songs .