3.
(1)Police in America have _________ _________(加紧)their search for a fifteen-year-old boy who went missing three days ago in Dover, New Hampshire.
(2)We will not give up until we _________ _________(弄清楚)what happened.
(3)You have to wear a helmet and a life jacket _________ _________(用于保护), just in case you fall into the water.
(4)In this peaceful land, people live _________ _________ __________ _________(十分和谐相处)nature, far away from the noise and worry of the outside world.
(5)If _________ _________(被吸入), they can result in illness or even death.
(6) The room is _________ _________ _________(一片混乱), with pizza boxes on the floor and dirty dishes in the sink.
(7)Why didn’t they ask me what happened _________ _________(而是)shouting at me?
(8)Boys and girls _________ _________(倾向于)be different in this regard.
(9)I’m now in hospital _________ _________(从…中康复)liver failure.
(10)We shouldn’t _________ _________ _________(对…感到羞愧)the way we look, should we?