_____ is no difference between A and B. A.There B.Where C.It D.What
---Excuse me, I want to buy some stamps. Where can I find a post office? ---I know _____ not far from here. You can easily find _____.
In the south of the city ______ two railway lines.
The head teacher with his students ______ Zhang Gong Shan Park if it _____ tomorrow.
---What are you reading, Tom? --- I’m not really reading, just _____ the pages.
We can have ______bluer sky if we create_ ____less polluted world.