（2014年福州市高三适应性练习）30. In general, _______ energy, we turn off the lights for Earth Hour on the last Saturday in March.
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A
saved
B
saving
C
to save
D
having saved
推荐题目
There are hundreds of visitors in front of the Art Gallery to have a look at Van Gogh’s paintings.
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A
waited
B
to wait
C
waiting
D
wait
_______ the meeting room,he found all the parents already _______ there.
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A
To enter; sitting
B
Stepping into;to seat
C
Entered; seat
D
Entering;seated
Mr. Smith is busy these days ________ a new book on how to develop a child’s reading skill.
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A
working out
B
working on
C
working for
D
working with
(2013·四川，8)________which university to attend，the girl asked her teacher for advice.
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A
Not knowing
B
Knowing not
C
Not known
D
Known not