These shoes look very nice. I wonder _______________.
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A
how much they are cost
B
how much do they cost
C
how much are they cost
D
how much they cost
推荐题目
Jack, ______ to be here at 8 o’clock.
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A
is sure
B
is sure that
C
will be sure
D
be sure
Ten years ago the population of our village was _________ that of theirs. 
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A
as twice large as
B
twice as large as
C
large as twice as
D
as twice as large
___ we know, in a chemical change, energy cannot be created, ____.
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A
Which, nor can it be destoyed
B
As, neither it can be destroyed
C
As, neither is it able to be destoryrf
D
What, nor is destoryed