515 Listen again and choose the best answers. 1 Speaker 1 is happy to eat less meat ... a to avoid eating insects. b because he eats too much protein. c because it's better for you. 2 Speaker 2 believes we won't run out of food because ... a technology will find solutions. b we'll plant more crops. C we'll learn to drink salt water. 3 Speaker 3 believes ... a everyone needs to become vegetarian. bglobal warming will prevent the world's population from getting bigger. c we use too many resources on animals. 4 Speaker 4 thinks that ... a fish will be important in our future diet. 6 eating meat is essential for the global economy. c more people should eat meat.