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004-005-Natural Grammar 1 - UNIT 01_006-007-Unit 01-TB.qxd  19/12/2016  7:17 μμ  Page 5

                                                                                                            Unit 1

                                                                         Unit 1 -  the indefinite article


             Exercise A

             Fill in the blanks with a or an.













                                                                                                        a
                                                                           a
                      a
                 1                 doctor  2                 elephant  3                 monkey   4                  baby
                                               an











                        a
                                                                                                  an
                  5                 cupboard             6                 piano             7                 eagle
                                                              a












                        a
                                                                                                 an
                                                              an
                   8                 yacht               9                  owl             10                 angel


             Exercise B
             Write the nouns in the correct box below.



                                         bird     umbrella     arm     eye     shop     lion     window     ear
                                          house     actor airport     hotel     unit     knee     egg     igloo


                                        a                                                an

                                                                                                an actor
                                                a house
                                                                         an umbrella
                         a bird
                     _______________        _______________           __________________      _________________
                                                                          an arm
                        a shop
                                                a hotel
                                                                                                an airport
                     _______________        _______________           __________________      _________________
                                                                                                an egg
                        a lion
                                                                          an eye
                                                a unit
                     _______________        _______________           __________________      _________________
                                                a knee
                        a window
                                                                          an ear
                                                                                                an igloo
                     _______________        _______________           __________________      _________________
                                                                                                                     5
   2   3   4   5   6   7   8   9