After careful consideration, he decided to take the position, ______ he knew it would be difficult for him.
This year has _______ World Year of Physics ______ Albert Einstein, the father of modern physics.
---I’m sorry. That wasn’t of much help. ---_____. And it was most helpful.
---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.