Relier Pairs 24/7 Listening Vocabulary MatchVersion en ligne Test your knowledge of key concepts related to 24/7 listening and communication. par ngô nhi 1 immediately (adv) 2 professor (n) 3 palaeontology (n) 4 extinct (adj) 5 ancestor (n) 6 compulsory (adj) 7 ecology (n) a person in your family who lived a long time ago the study of the relation of plants and living creatures to each other and to their environment no longer in existence without delay the study of fossils as a way of getting information about the history of life on Earth that must be done because of a law or a rule a university teacher of the highest rank
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