The first attempt to 1) and name living organisms dates back to ancient Greece, when Aristotle and his student Theophrastus divided animals and plants according to their 2) such as being ain) 3) . or ain) 4) The invention of the 5) lens some centuries later led to more detailed observation of organisms during the Renaissance period. Using the work of Renaissance 6) as a foundation, Cari Linnaeus introduced a standardised 7) naming system for all species, whereby the name of each is made up of the 8) and a unique name​

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13.The game hasn’t ended yet.  e. Present Perfect

14.A soldier was turning the control of a small army radio.  d. Past Continuous

15.Few people knelt down on the wet tarmac  b. Past Simple

16. You’ll be pleased to see your family.  g.Future Simple

17.None of the passengers had moved except Carl.  f. Past Perfect

18. If they don’t come ,he won’t need a doctor. i. Conditional I

19. She is sitting down talking to those two men. c.Present Continuous

20 Grenades were thrown into the open door. h. Past Simple Passive

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