----The Singaporean singer Stefanie Sun took the Most Popular Female Award in Hong Kong.----But when she studied in middle school, no fans could have imagined how well she _______ in the world of entertainment. (孙燕姿) 
#103705
A
would do
B
was doing
C
had done
D
did
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I need one more stamp before my collection ______. (MET1994 ) 
#104331
A
hascompleted
B
completes
C
hasbeencompleted
D
iscompleted
Had you taken the doctor’s advice yesterday, you ____ all right now.
#103004
A
are
B
were
C
would be
D
would have been
Three-fifths of the buildings____in the earthquake .
#103630
A
was destroyed
B
have destroyed
C
were destroyed
D
has destroyed