If Newton lived today,he would be surprised by what_____in science and technology.
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A
had discovered
B
had been discovered
C
has discovered
D
has been discovered
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You would not have made so silly mistakes , but it is a pity you _______ my advice.
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A
didn’t accept
B
hadn’t accepted
C
hasn’t accepted
D
wouldn’t have accepted
Tom has been absent for two days.Do you know what _________ to him?
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A
has happened
B
would happen
C
was happened
D
had happened
The way of life he was used to _______ when he came to study in America. 
#101025
A
change
B
changed
C
changing
D
being changed
The examination will begin at 10:30. Those who come late        to the examination room.
#103012
A
have not been admitted
B
don’t admit
C
will not be admitted
D
didn’t admit