Page 155 - BenchMark_6-1
P. 155

Build Language: have been -ing






      Read the sentences and fill in the blanks by using “have been -ing.”





        1.         They started working together five years ago. They




                   are still working together.




                   → They                           have been working                                                    together for five


                           years.






        2.         The dog started barking ten minutes ago. It is still




                   barking.



                   → The dog                                      has been barking                                                  for ten minutes.











                                                                                                  Unit 4 | From Caves to Canvas: Art Through the Ages
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