Употребите неопределенный артикль , если необходимо! 18 баллов

1 A fortnight consists of fourteen days.2 A student must have a good memory.3 Children are fond of playing computer games.4 A friend in need is a friend indeed.5 A secretary must be well-organized.6 Vtgetarians dont eat meat.7 A busker is a street musician.8 A dictionary gives a relitiable information.9 A friend is a person who understand you.10 Teachers give us a knowledge.11 A hour in the morning is worth two in the evening.12 A piano is a musical instrument.13 A week passed, then a month. No news came.14 A politician must be a good speaker.15 Xerox is a photocoping maschine.16 A dentist is a doctor who looks after our teeth.17 A chauffeur is a person who drives a car.18 Flowers need a lot of care.19 A chip is a very small piece of silicon inside a computer.