Use of English · Część 2
Recycling involves taking used materials and turning them (0) INTO new products. It is not a new concept: people (1) .......... been recycling for hundreds of years but (2) .......... rising energy costs since the 1970s it has become more of a necessity and is now common practice. The idea of recycling is to prevent…
Odblokuj wszystkie egzaminy, nielimitowane symulacje, wszystkie 80 etapów gry i nie tylko.