In a person’s lifetime, the brain can store 100 trillion pieces of informations.




A.a person’s lifetime
B.100 trillion
C.pieces
D.informations

__________ (49)




A.grew
B.grown
C.grow
D.growing

__________ (47)




A.been
B.was
C.be
D.is

It can be inferred that Armstrong's statement was important because___________ .




A.Neil Armstrong was a great speaker
B.this was the first time America had sent people into space
C.they were the first words to be spoken on the moon
D.the statement was spoken from the lunar module ladder

The word "deploy " in the passage is closest in meaning to___________ .




A.photograph
B.begin working
C.stop functioning
D.light up

This is the hotel _________ rooms have a view of the sea.




A.whose
B.where
C.which
D.its

Educators have made great strides in recent years in combating the ignorance of the nation’s young about AIDS.




A.unawareness
B.fearlessness
C.arrogance
D.indoctrination

A.caring
B.maintain
C.require
D.oblige

The view of the canyon was breathtaking. Never before ............. such beauty.




A.had seen we
B.had we seen
C.we had seen
D.we hadn't seen

Such a long way.........it that we decided to go by train.




A.is
B.had
C.has
D.was