3 What do the underlined words refer to? 1 she (line 1) Mary
2 her (line 4)
3 he (line 6)
4 It (line 8)
5 it (line 13)
6 it (line 16)

This room is cleaned every dayGlass is made from sandWhen was television invented?These houses were built about 50 years agoAnn's bicycle was stolen last weekShe is payed 300$ a monthAmerican programs are shown on British TVMany different languages are spoken in IndiaThree people were injured in the accident last nightThe hotel was damaged in the fire last weekThis film was made in 1982The transistor was invented in 1948How was the window broken?When was this theatre built?What language is spoken in Ethiopia?

1. The question is whether mechanical or physical separation methods have to be applied. 2. The classification of solids is known to be great importance in food industry. 3. The operation of mixing which may be used for a purpose or as an auxiliary operation have been considered. 4. To choose the equipment for a certain purpose all properties of the material to be processed are to be considered. 5. This mixer is provided with vertical as well as horizontal material displacement. 6. In some cases the purpose of mixing is to obtain a good contact between the materials to be mixed.
1. Вопрос заключается в том, должны ли применяться механические или физические методы разделения. 2. Мы знаем, что классификация твердых веществ имеет большое значение в пищевой промышленности. 3. Была рассмотрена операция смешивания, которая может использоваться для какой-либо цели или в качестве вс операции. 4. Чтобы выбрать оборудование для определенной цели, необходимо учитывать все свойства обрабатываемого материала. 5. Этот смеситель снабжён вертикальным и горизонтальным перемещением обрабатываемого материала. 6. В некоторых случаях целью смешивания является получение хорошего контакта между смешиваемыми материалами.