The book about environment ______ the importance of protecting the earth.
See the flags on top of the building? That was __________ we did this morning.
Please remind me __________ he said he was going. I may be in time to see him off.
—Oh, dear. What happened?—I __________ on the shiny floor and fell.
__________ was most important to her, she told me, was her family.
I can hardly stand his rude manners. I object __________ like this.