英语好的速速戳入~把空的填上,最好两份不同的答案:All these inventions have helped pe

All these inventions have helped people live a better life,but we think cell phone is the most influential invention in recent year.This invention has made our long-distance communication so much easier.In the past,people wait for days and months to get the message from their family and friends.Now with wechat,they can speak to each other across the continent.Without cell phone,we can't keep in touch with many friends.Therefore,moblie phone is the most useful invention.It has changed our world.