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填空題

Consonant sounds can be either （）or（）,while all vowel sounds are （）.

答案： voiceless；voiced；voiced

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To many people,a linguist is the same as a （）,one who can speak several languages fluently.

答案： polyglot

Utterance is based on （）;it is the realization of the abstract meaning of a sentence in a real situation of communication,or simply in a context.

答案： sentence meaning