Try to ______ the children down.   They’re too excited. 

(2013·潍坊三县一模)If you don't work hard，it will be of no ________ for others to help you.

 My interest in surfing on the Internet has_______ most of my spare time, but it has repaid me a great deal of enjoyment.

Lucy asked for a separate room so that she could avoid ______ with Tom alone.

It turned out that she won the first prize in the competition, which was beyond her         .