Completar frases Unit 13 - Round 1Versión en línea Listening gap fill 1 for Unit 13 por John E 1 If trends continue , then in some countries the is to dwindle within the next 50 years . This problem is compounded by the fact that not only is the of diminishing , but they are also growing older . This population will bring its own challenges . At there are younger people to earn money and pay taxes to the elderly . However , within 50 years this will not be the case . There are several factors contributing to the . First , birth rates in these countries are clearly failing . Second , there could be an in the number of people away from these areas . The aging and declining population is expected to have implications for the labor force and the of everyday life .
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