单项选择题

The windmill, which has been used for hundreds of years to pump water and grind grains, ______ redesigned to pro duce electricity.

A．it is now being
B．it now can
C．is now being
D．now being
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单项选择题
______ that they may eventually reduce the amount of labor needed on construction sites by around 90 percent.
A．So clever are the construction robots
B．So clever the construction robots are
C．Such construction robots are clever
D．Such clever construction robots are
单项选择题
A Dream of Red mansions is said ______ into dozens of languages in the last decade.
A．to have. been translated
B．to translate
C．to be translated
D．to have translate
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