The flow of charge in a circuit is called?       Potential difference is measured by an instrument called? 
True of false
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Начните приглашение с обращения:
Dear friend- в зависимости от статуса человека, можно начать с приветствия:
Hello, имя" или "Hey, имя".
Дальше можно сразу писать текст приглашения:
I’d like to invite you to you for Valentine's Day.
Не забудьте написать, куда и в какое время вы приглашаете, например:
This week, on Sunday, I’m having a party at home. - На этой недели, в воскресенье, я приглашаю на вечеринку домой.
В конце письма выразите благодарность за внимание к письму:
Thank you for your attention.
И обязательно указывается контактное лицо, телефон.

Sport is cool. We have sport at school, at home. When you run or jump you feel  more energy. In winter I like play snowballs and make snowmen. It is funny and healthy, because you breath fresh air. Summer is the best season. I can swim in river and have sunbath. My favourite sport is bаdminton and tennis. Also, summer have a lot of healthy food. Fruits and vegetables. I care about my health. I dont eat harmful food. For example:chips, lemonade and fastfood. Usually i drink one litr water. It is healthy fоr my organism. Say YES to sport and healty food. Say NO to bad habit.