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first smartphones / introduce / in 2007.
The first smartphones were introduced in 2007.
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in the 1990s / tapes and CDs / replace / MP3s
In the 1990s, tapes and CDs were replaced by MP3s.
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Amazon / start / in 1994 / by Jeff Besoz.
Amazon was started in 1994 by Jeff Besoz.
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about 120 million cell phones / throw away / every year in the US.
About 120 million cell phones are thrown away every year in the US.
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about 60,000 videos / post / on You Tube / every week. /
About 60,000 videos are posted on You Tube every week.
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the first text message / send / by a Canadian engineer / in 1995
The first text message was sent by a Canadian engineer in 1989.
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Ebay / invent / by a French scientist / in 1995
Ebay was invented by a French scientist in 1995.
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trillion of text messages / send / worldwide / every year.
Trillions of text messages are sent worldwide every year.
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first computer / build / in 1936.
The first computer was built in 1936.
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the most expensive cell phone in the world / make / of gold and diamonds.
The most expensive cell phone in the world is made of gold and diamonds.
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