—Jack, you erase the blackboard today,______? —But I erased it yesterday.
My cousin went to Canada two yours ago. He ______ there for a few months and then went to America.
—Look! He’s running so fast!—Hard to______ his legs were once broken.
—I’d like some more cheese.—Sorry, there’s _____ left.
I looked under _____ bed and found _____ book I lost last week.
Geography is the study of the countries of the world and of such things ______ the land, seas, climate, towns, and population.