Everybody at the scene was shocked when the fierce shark _______.
.It seems to me that______little money he earns hardly supports______family as large as hi:A.the;a B.a;the c.不填;a D.不填:the
._______ , the firemen put all the fires out quite quickly.
.---How did you know the surprising news? ---I happened _______ the event then.
.---Is that the small town you often refer to? ---Right, just the one _______ you know I used to work for years.
.On average, there are 800 tornadoes in the U.S. each year, _______ about 80 deaths and 1,500 injuries.