Our school has strict rules. Almost no one can ________ using cell-phones in class .
. In 1989 an international law was passed to stop people _____ waste into the sea.
. —— John wants to see you today. —— I would rather he ____ tomorrow instead of today.
. —— Don’t you have a watch? —— But it has gone wrong. They say it’s not worth ______.
. This kind of work ______ great patience, so you should take your time.
. Li Ming, as well as his parents , ____ to the party.