---Here are three books on history.Which one would you like to borrow?--- ______. You see,I’m interested in geography these days.
--- Where’s my basketball? --- It’s _______ the door.
–Is this your book? –Yes, ________.
This is ______ ruler and that’s ______ eraser.
—_______ can I keep the books? —Two weeks.
I think _______ necessary for you _______ breakfast.