---I will have an exam tomorrow. I hope I can pass it.---
—Where is the supermarket?—It’s ________ Bridge Street.
—What is on the desk?—There ________ a book and two pens on it.
—________ there a library near the post office?—Yes,there ________.
—________—Thanks.I want to buy an MP5.
—What class are they having?—Math.Their math teacher is ________ the classroom.