Books are the most important records we keep _________ man’s thoughts, ideas and feelings.

Youth is often ______ with freshness, happiness and other beautiful things.

It will be one of the nations worst affected by climate change, as________ of the country ________ below sea level．

 After that, he knew he could ________ any emergency by doing what he could to the best of his ability.

“After World War II, many of the cities across western European countries ________,” our guide said.