Present Perfect Simple vs. Present Perfect Continuous (Exercise)

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Underline the correct form.

 A. Scientists have recently identified/ have been identifying a new species of animal in the rainforest of Borneo. They have been searching/ have search for this creature for several years, after reports from local villagers, and say it is a type of lemur.

B. Archaeologists in Guatemala have found/ have been finding a Mayan wall painting which they think is more than 2.000 years old. Archaeologist William Saturno has explored/ has been exploring the site since 2002.

C. Scientists using the Hubble Space Telescope think they have been finding/ have found two new moons circling the planet Pluto. Astronomers have been looking/ have looked closely at Pluto since 1978 when they have been spotting/have spotted its first moon. The telescope has worked/ has been working for fifteen years, and has been producing/has produced more than 700.000 images of the universe.

D. Australian scientists have been discovering/ have discovered a new coral reef over 60 km long in the Gulf of Carpentaria by using satellites to spot the reefes in deep water. Recently divers have managed/ have been managing to reach the reefs and take photographs

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