用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。

on  first  give  change  it  letter  while  because  cheap  fast

The British love sending text messages. They send more than 2.5 billion every month. And most people now understand the language of text, with its numbers and missing   小题1: . In fact, when a student at a Scottish school wrote the whole article “in txt”, his teacher    小题2:   him “C+ 4 f4t ” (“C+ for effort ”).
Although texting(发短信) is a   小题3:  way of staying in touch with your friends, it can also bring problems. In 2005, a British teenager became the   小题4:   person in the world to receive treatment for an addiction(沉溺) to text messaging. In one year, the nineteen-year-old spent about ￡4,500    小题5:  texts.
For some people, text messaging has   小题6: their lives. For example, James Trusler from Sussex in England travels around the world taking part in texting competitions and TV shows. He’s the world’s   小题7: texter and recently set a new world record    小题8:  he was appearing on Australian TV. He texted:“The razor-toothed piranhas of the genera Serraslmus and Pygocentrus are the most ferocious freshwater fish in the world. In reality they seldom attack a human.”   小题9:  took him 67 seconds. James sends a lot of text messages—about 2,500 a month. But he doesn’t get big bills   小题10:  he works for a large mobile phone company!