4 because Read the following problem. In column B, write your ideas for a reply. All my friends have smartphones, so they can send each other messages all the time. I haven't got one, because my parents say I don't need one, and also because they say they're expensive. I would like them to change their mind! What should I do? Alex eto on't On er the Now write your reply to Alex in three paragraphs. Use your ideas and information from Exercises 3 and 4. ere?