单选题 - Excuse me, could you show me the way to the nearest post office?
- ______Oh yes! Two blocks away from here at the Green Avenue. You can't miss it.

单选题 - Thank you for inviting me.
- _______

单选题 The temperature in the Antarctic is always above zero.

单选题 -If you need me, jut let me know.
-I will,___________.

单选题 Antarctica is called a desert because it has little moisture and no lakes or rivers.

单选题 - Hey, Tom, what's up?
- __________

单选题 - I'm sorry. I am late due to the heavy traffic.
- ________

单选题 The Antarctic has ten times as much moisture as the Sahara.