6. Complete the sentences with the verbs *** in the correct form of the passive. Then choose the correct answer. Write the answers in your notebook.
1. Warsaw © (visit) by about one million/five million/ten million tourists every year.
2. Over a billion songs Ø (stream) on the internet every hour/day/week.
3. Euro coins and banknotes in 1998/2002 / 2006.
4. The first mobile phone SMS message (send) in 1982/1992 / 2002. (introduce

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