why cellphone is the most important in our life?

why cellphone is the most important in our life? What's the most important in our life? Which job is the most important to our life? Is friendship the most important thing in the world?why? Why is computer important for our life? Happy is the most important thing in your life 意思 Which is the most important thing in mother"s life? who is the most important person in your life What is the most important in your life now? Is money the most important thing in life? the most important one in my life is you h____________ is becoming the most important thing in our da