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The research is so designed that once _____ nothing can be done to change it.
#95029
A
begins
B
having begun
C
beginning
D
begun
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 Is _____ possible to fly to the moon in a spaceship?
#94704
A
now
B
man
C
it
D
that
I think that this meal was well worth _______ was charged for it.
#95065
A
that　
B
what
C
which
D
how many
The earth is 49 times ___the moon.
#94659
A
as bigger as
B
so big as
C
the size of
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of the size of
It remains________ whether Jim will be fit enough to play in the finals.
#92586
A
seen
B
to be seen
C
seeing
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How long do you think ______ the Microsoft brings out a new product?
#92259
A
it will be before
B
will it be until
C
will it be when
D
it will be that