Zakreśl wyrazy, które poprawnie uzupełniają poniższe zdania.

Nowadays, most of the products we buy aren’t handmade.

They are produced in factories on production lines.

2 The Internet didn’t / wasn’t invented until after World War II. The first networks installed / were installed in the 1960s and 70s.

3 Home computers aren’t / weren’t sold in large numbers in the 1980s. Nowadays, however, a computer or a laptop buys / is bought by someone every day!