---What do you think of his new design?--- It’s of even practical value than the old one. He’s just a bookworm!
A terrible earthquake happened_________the afternoon of March 11th, 2011 in Japan.
—Do you know the man _______ is talking with our English teacher? —Oh, he must be Lin Tao's father. He was looking for Lin Tao just now.
---What should we do to fight A/H1N1 flu? ---We should wash hands often, avoid ______ to crowded places and so on.
The doctor did what he could_________ the dying man.
---Where does John live? ---He lives on ______ floor but he doesn’t use a lift to go up and down.