—______was it______they discovered the entrance to the underground palace？— Totally by chance.
A. How; that
B. What; that
C. When; when
D. Where; that
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Sales of CDs have greatly increased since the early 1990s, when people______to enjoy the advantages of this new technology.
A. begin
B. began
C. have begun
D. had begun
What can be said about the acrobatic show？
A. When you watch it, you will certainly feel cold.
B. Something strange will puzzle everyone, including scientists.
C. Unexpected things will make you excited and surprised.
D. Even the bravest ones will be too frightened to go on watching.
The most characteristic thing about the Fashion Night of Chinese Rock is that______.
A. it will let the audience choose the music
B. it is to bring thousands of rock fans out of their homes
C. it will certainly cause a rock storm throughout China
D. it is to be held in memory of one of the greatest musicians
（）不是新课改提倡的学习方式。
A. 自主学习
B. 合作学习
C. 探究学习
D. 发现学习
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