Question

Hay que hacer este ejercicio usando la pasiva o la activa alguien puede xfaa??:

1) Today in most modern countries, people ______(not dump) rubbish onto hills. The rubbish_____(bury) in landfills.
2) The first cans_____(make) in 1813 with very thick metal. They_____(not open) easily.
3) Before 1947, people_____(not think) of using plastic bottles. But now in the USA, people______(purchase) about 50 billion bottles a year!
4) Shops______(start) to sell milk in cartons in 1933. During the 1920s, milk______(buy) in glass bottles.
5) Credit cards probably_____(not use) en the future. People______(play) with their smartphones.

Answer 1

1) don't dump / is buried.

2) were made / weren't opened.

3) didn't think / purchase.

4) started / was  bought

5) won't be used / will pay.