As its name __________, the Volunteer Farm relies on volunteers to weed, plant and harvest.

The story is the same for many urban white-collar workers in China now: they’re putting in overtime to reduce the risk of being      .

The church, which ____ back to the 17th century, is undergoing a complete restoration.

Computers have been made ______ clever that they can ______ problems like humans _______. 

He was suddenly ________ with a strange illness when he was about to finish his work.