My mother is an excellent teacher.She is ________ to spend a lot of time explaining things to her students.
It’s a long time ago ______ I saw you last time.
He is too fat, and he is made ______ exercise by his parents every day.
She is the only one of the girls in our class______ been to the United States.
______since he left his hometown.
—Kate, it is raining, you’d better take ______ raincoat with you. —Well, but I can’t find ______raincoat I put yesterday. A. a ; the B the; a C. a ; a D. the; the