一、单项选择。（每题1分，共20分）。
1. My pen pal comes from __________. She is an American.
A. Beijing B. New York C. Tokyo
2. —Where is Toronto? —It's in .
A. France B. England C. Canada
3. —Why don't go to school __________ Sundays.
A. at B. in C. on
4. —Excuse me, sir, __________
—Go down this road and turn left. It's next to a white house.
A. How is the weather? B. Where's the supermarket C. How are you
