-Where’s the old blue bag? - I’m not sure, but it ______ be thrown away. It be somewhere in the house. I saw it yesterday.
My father loves ____ jokes to us.
Tom likes soccer very much. I often see him ______ soccer at school. A, to play B. playing C. play D. be playing
These cakes ________delicious! Can I have ________ one?
Jim with his teacher ______ over there.
—How many ______ are there in your school? —There are twenty-one.