Completar frases C22U4 Writing 1CVersión en línea Complete the sentences with the prepositions. por Modern English 1 beneath upon within amongst upon throughout 1 . A healthy environment is dependent how well people manage their resources . 2 . We should do everything our power to protect these species . 3 . There are complex systems the earth's surface that people do not fully understand . 4 . I wonder how the leopard and rhino , which are the most threatened species , can survive . 5 . The effect tourism will be so huge the world that we cannot imagine them .
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