(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
_ properly, a car can be used for many years.
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A
Maintained
B
Maintaining
C
To be maintained
D
To maintain
Your idea surprised me, it is a(n) _____.
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A
idea surprised
B
surprised idea
C
surprising idea
D
idea surprising
________ their lessons, they went to the cinema.
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A
Finishing
B
Had finished
C
Finished
D
Having finished
A great number of students ______ said they were forced to practise the piano.
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A
to question
B
to be questioned
C
questioned
D
questioning