—What do you think of the book?
—Oh, excellent. It’ s worth ______ a second time.

Tom went off to the EXPO Garden with his friends, ______an exciting day of discovering the unique culture of each nation．

When _______ help, one often says “Thank you” or “It’s kind of you”.  
　 

Returning to my hometown, _________.

---I can’t work it out in this way.
---Why not ________ it another way?

The _______ performance ________ everyone present.

Director Zhang Yimou often has his films _________ local contents, which foreigners are not familiar _________.

_____the window,my finger was cut unexpectedly.

After the storm, I found the world _______ and the old house ________.

In the earthquake, parents were willing to do         they could        their children.