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It isn’t quite ___ whether the Tibetan antelope is still being hunted.
A.certainB.sureC.safeD.careful
A

试题分析:考查形容词:A. certain确定的,B. sure确定的,C. safe安全的,D. careful仔细的,句意:是否藏羚羊正在被捕猎还不确定。AB都有确定的意思,但sure的主语不能是it,certain可以。选A。
点评:特别是汉语意思相近的形容词,要从它们的搭配和词义本身的不同区分,做题时要注意这些差异。
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