209. Very loud ______ can make people ill, or even drive them mad.
Either you or the headmaster ______ the prizes to the gifted students.
The 2010 Shanghai World Expo is well worth ______.
I am interested in traveling. It is ______ but ______.
The windows haven’t cleaned for a long time. They need ______.
I can’t help being touched_____ I see the photo of the little Afghan girl crying over her mum’s body