--Have you returned the book to the library _______? --Yes, I have ____ returned it.
#35103
A
yet, yet
B
already, already
C
already, yet
D
yet, already
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There         one country in the world.
#36000
A
will be only
B
be will only
C
will only be
D
only will be
She can’t sing, but she plays the piano ______ well.
#35757
A
pretty
B
too
C
quiet
D
great