15. The doctor told William that, if he ate well, his mental states would become more positive. A William was told by his doctor that his mental states would not improve unless he improved his diet. B The doctor told William that it was necessary to eat well in order to have positive mental states. C The doctor told William that, unless he ate better food, his mental states would progressively decline. D William was told by his doctor that eating nutritious food would have a beneficial effect on his attitude and thinking. 16. A recently discovered map, originally drawn in 1418, appears to show that a Chinese explorer discovered America. A Proofthat a Chinese explorer discovered America has come to light in the form of a map, originally drawn in 1418. B A recently found map appears to show that a Chinese navigator discovered America in 1418. C That a Chinese explorer discovered America seems to be true, according to a map that has just been discovered. D In 1418 it was believed that America had been discovered by a Chinese sea captain. 17. If a country is economically depressed, animal welfare is not going to be a top priority. A A country needs to be wealthy fo look after animals properly. B If a country's economy is strong, it will not have the time to care for animals. C If a country is not trading well with others, it will have more time to devote to looking after its animals. D The well-being of animals is not going to be amongst the most important tasks in a country beset by financial problems. 18. Spinach contains an antioxidant called trifecta and really does help smooth out facial wrinkles, according to a report in a leading medicaljournal. A It has been authoritatively reported that eating spinach will help keep your face smooth. B If you want to have smooth skin, it has been recommended that you eat fruit and vegetable products containing the antioxidant trifecta. C Aleading medicaljoumal recommends everyone to eat spinach. D Doctors recommend that people who want beautiful skin eat spinach. 19. Universities in Britain are facing growing competition from Europe and America for the lucrative overseas students' market.
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