问答题

________ (由于激烈竞争) among the airlines, travel expenses have reduced dramatically.

【参考答案】

Owning to fierce competition
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Wouldn’’t you rather your child ________ (早上床睡觉)
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Although it is difficult nowadays to convince the public of the importance of nature reserves, Dr. Baum felt that _______.
A．people would support moves to create more environment areas
B．certain areas of countryside should be left undisturbed by man
C．existing national parks would need to be more independent to survive
D．people would carry on supporting those national parks in existence
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