The World Expo 2010 will open on May 1 and end on October 31.(保持原句意思)The World Expo 2010 will____ ____from May 1 and end on October 31.

问题描述:

The World Expo 2010 will open on May 1 and end on October 31.(保持原句意思)
The World Expo 2010 will____ ____from May 1 and end on October 31.

be held

The World Expo 2010 will___be _ _on___from May 1 and end on October 31.

Be opening