Task 1. Complete the text with the Past Simple Passive form of the verbs in brackets.
Modern text messages, or SMS, were invented(invent) in 1992. Early messages (not write) on a mobile phone, they could only be sent from a computer to a phone. The first message in the UK said “Merry Christmas”. In 1993, the first mobile-to-mobile SMS service(introduce) in Sweden. It wasn’t popular immediately, but by 2011, an average of 17.9 billion texts(send) every day. However, technology always moves forward, and in the same year, SMS messages(replace)as the most popular way of sending texts. Chat apps, such as WhatsApp, (use) to send 19 billion texts a day. Experts think this number is going to double in the next two years.
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Yuntsev    3   05.05.2020 11:01    31