• 1、When facing a hard question, most people can't give an answer i(立刻).
  • 2、 The more I understood fish, the more I became e(有效的) at finding and catching them.
  • 3、 In Singapore, rank is important and a(权威) is respected.
  • 4、 The story is written in p (简单明了的) English.
  • 5、 Unfortunately, he was  (射死) dead.
  • 6、 Human life is regarded as part of nature and, the only way for us to survive is to live in h (和谐) with nature.
  • 7、Traffic issues not only affect our everyday life, but may also t (威胁) people's lives.
  • 8、 The government does not i (打算) to stop the protection programmes, since the t(威胁) to the Tibetan Antelope have not yet disappeared.
  • 9、 Zhaxi and other volunteers watched over the antelopes day and night to keep them safe from a(攻击).
  • 10、I'm also r(提醒) of the danger they are in.
  • 11、This is why we're here — to o(观察)Tibetan antelopes.
  • 12、I'd like to r(预订) a table for three for eight o'clock.
  • 13、Elephants need large living spaces, so it's difficult for them to a(适应) to the changes.
  • 14、 We should take proper m(措施) to improve our environment.
  • 15、 We must make people a (意识到)of the problem and help protect the e  (濒危的) wildlife before it is too late. 
  • 16、 The educationalists are c(关心的) about the health of teenagers under such heavy study p (压力).
  • 17、Many s(物种) have died out as a result of man's activity.
  • 18、 The a(平均的) income of the staff has increased by 50 percent compared with last year.
  • 19、Our planet's wildlife is dying out at an a(惊人的) rate.
  • 20、 Their h(栖息地) were becoming smaller as new roads and railways were built.
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