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题库 / Prep2007E2-SC-96
There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990.
generated through wind power now than it was
generated through wind power now as it was
generated through wind power now as was the case
now generated through wind power as it was
now generated through wind power than was the case
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it/they同物指代，that/those异物指代
这个句子可以改写成：
more than ten times as much energy is generated through wind power now as in 1990 或 as that in 1990 或 as was the case in 1990
so/such/case可以指代句子/一件事情，如：
No one do so, even though there are more apples in the trees can be picked this year.
The sun ejects red fire, as is the case with any star of similar mass.
Cells secreted hormones, in which case they were endocrine cells.
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