1)Look,-----dirty the water is!yes,we should really take act

1)Look,_____dirty the water is!yes,we should really take action to deal with it.A.what a B.what C.how D.how a 2)During the past two years ,several earthquakes ______in different places of the world.A.happen B.happened C.took place D.take place3)His flight to New York will ______from Shanghai International Airport in two hours.A.take off B.take up C.take away D.turn off