The best way to explore _______ countryside is on _______foot.
The boy ________ on the ground ________ to me that he ________ the book on the table.
You can hardly imagine the trouble we had _______ in touch with him again?
_______ houses were knocked down in the earthquake.
The news that an earthquake happened in Yushu ______ throughout the whole world quickly.
I was about to have a shower______ the telephone rang at the bedroom.