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07one (a) half a quarter three quarters three and a half 213414321past now so far So far, I have read five English masterpieces (名著) . 。 billion≈1 / 5 (one 20 percent (20%) One fifth of the people in the world live in China. fifth) 01234567the populationthe worldChinaWhat problems does a large population cause? ?Because of the large population, there is ______ (more/less) living space. ?Because of the large population, it’s ______ (difficult/easy) for many people to find jobs. ?Because of the large population, we are short of _______ and _______ . ?Because of the large population, the cities are _______ _______ than before. ?Because of the large population, the traffic is ______ _______. Because of the large population, there is less living spa