–Bill is warm-hearted and works hard.—________ his sister Betty. 
#4650
A
So is
B
So does
C
Nor does
D
It’s the same with
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Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
#4678
A
producing
B
having been produced
C
to be produced
D
produced
—Did you enjoy yourself at the party? —Yes. I’ve never been to  ______one before.     
#4924
A
a more excited
B
the most excited
C
a more exciting
D
the most exciting
--- He is considered _____ for London. --- Yes , I’m considering _____ there as well.
#4640
A
leaving ; going
B
to leave ; to go
C
to have left ; going
D
having left ; to go
Edward, you play so well. But I ______ you played the piano. 
#5038
A
didn’t know
B
hadn’t known
C
don’t know
D
haven’t known