(2013·福建毕业班质检)It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
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A
produced
B
producing
C
to produce
D
having produced
推荐题目
People are not allowed ______freely at the meeting and they don’t allow ______either.
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A
talking; to smoke   
B
to talk; to smoke
C
talking; smoking    
D
to talk; smoking
You never imagine what trouble I have _________this paper in my house.
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A
finding
B
to find
C
found
D
for finding
_________ to the sunlight for a long time does harm to one’s skin. 
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A
Exposing
B
Be exposed
C
Exposed
D
Being exposed
His first book ___________ next months is based on a true story.
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A
published
B
to be published
C
to published
D
being published