3rd April, 1973 was a cool spring ____ in New York City. People ____ in the street when they saw a man with a large object in his ____. He was holding it next to his ear and he ____. But there was no one with him! Who was the man and who was he talking to?The man was Martin Cooper and he worked for Motorola. He was talking to Joel S. Engel, who worked for a rival company. Engel was sitting at his desk when his phone ____. ‘Joel, this is Marty,’ said Martin. ‘I'm calling you from a ____ phone, a real hand-held ____ cell phone*.’ This was the first ever ____ mobile phone call. The mobile phone Martin Cooper used was very different from ____ today: It ____ 1.1 kg and it was 23 cm ____. It only made phone calls. The battery ____ only twenty minutes. Today, most smartphones weigh 100–200 grams. They have a ____ screen, they can ____ to Wi-Fi, you can talk for hours and charge them with a portable ____. There are ____ for everything you want to do. You can even choose a different ____ for each of your friends and family!

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