Bats are surprisingly long-lived creatures, some _______ a life span of around 20 years.

(2013·甘肃部分示范学校调研考试)We often provide our children with toys, footballs or basketballs, ________ that all children like these things.

In that country, you can see the temple ___ the 12th century.

 ______ quickly, _______ you won’t be able to catch the train.

 Comparison may make something appear more beautiful than it is when _________ alone.