Put in the right present tense verb forms 1. The sunlight HEATS / IS HEATING ??? one side of thee tower s external wall, changing the volume of the bricks 2. Patents are immensely important in the global biotechnology industry that HAS DEVELOPED over the past 20 years 3. During long space missions there IS a high risk of the different effects of strain accumulating. Astronauts HAVE very little recovery time, they WORK very long hours, but even when they FINISH their work, they are not able to withdraw from the work environment. 4. The sun BELONGS / HAS BELONGED to the second generation of stars to be produced since the universe began. 5. At the moment, the universe IS EXPANDING, and IS 90 per cent as big as it will ever be. The only objects we DON'T SEE are the few that lie between 98 and 102 billion light years away, because their light DOESN'T HAVE yet time to reach us. 6. The average american CONTRIBUTES twenty times more to the greenhouse effect than the average indian, in fact, these western countries who have been immoral in environmental terms now ARE PREACHING to those who HAS BEEN/ ARE ??? frugal and sparing. 7. J. Sainsbury, a big supermarket firm, IS LOOKING a new site in the area and is rumoured to have its eye on the plot. 8. Now media bussines, and especially television IS BECOMING increasingly multinational.