Докажите, что четырёхугольник, у которого две стороны параллельны и углы, прилежащие к одной из этих сторон, прямые, является прямоугольником

Напишите кратко не из интернета КРАТКО: Когда не пишется вместе когда раздельно? Когда пишется одна н, а когда две? 

слово чаща однокоренные

переведите пожалуйста, только не из переводчика Paolo is teased at school because he is Italian. He has to have extra lessons for his English reading and writing. He often feels nervous about going to schol/ His teacher knows he is unhappy but isn't doing anything about it.

Meg was made redundant from her job as a secretary last year at the age of 49. she loved her job and would like to find a similar one. She keeps applying for secretarian positions and has joined a placement agency. However, she has only been called to a couple of interviews which she feels didn't go very well even though she is highly qualified. She suspects that employers are looking for younger secretaries. She doesn't know what to do