A c              is a river dug by man for travel , shipping or irrigation .

After the earthquake, everything in the city was d     ____    . Nothing was left.

The mudslide in Zhou Qu has been one of the greatest d___________ that hit China these years.

The film Titanic is b      ____     on a true story that happened in 1912.

He shook his head, which meant that he d_____________ with me.

By the Internet, we can c_____________ with people all over the world.

I am d__________ to change my job. No one else can change my mind.

Because of global warming, there are more and more natural d___________.

Whether you will succeed or not depends on your a__________ to it.

The War of __________________(独立) of the United States of America cost that nation hundreds of millions of dollars.