Most parents take strong views against computer games which children are addicted to and _______ the closing of all net bars for such games.

However, there was nobody that I could ____ help.

 They ___________to put their hearts into study..

—Will you be able to finish the report before Friday? —I can’t ______ anything, but I’ll try my best. 

If better use is ________ of your spare time, you'll make good progress in doing your business.