Complete these sentences.circle the correct form of the verbs. In some cases, both forms are correct 1.Professor Owen is working on two articles for National Wildlife Magazine. She has written /has been writing these articles since Monday. 2.National Wildlife Magazine has published / has been publishing its annual report on the environment. It is an excellent report 3.More tnah 500 African elephants have already died / have been dying this year 4Professor Owen has given / has been giving many talks about wildlife preservation in past lecture series. 5.She has spoken / has been speaking at our school many times. 6.Congress has created / has been creating a new study group to discuss the problem of endangered animals. The group has already met twice. 7.The new group has a lot of work to do. Lately, the members have studied / have been studying the problem of the spotted owl. 8.Professor Owen was late for a meeting with the members of Congress. When she arrived the chairperson said, "At last, you're here. We have waited / have been waiting for you." 9.Professor Owen has lived / has been living in England for the last two years, but she will return to the United States in January 10.She has worked / has been working with environmentalists in Kenia and Tanzania