Tick () A, B, or C to complete the sentences. Example: My name Robert. A am B is C are 1 Ben and Jessica really good jobs. A has B haves C have 2 My brother French at university. A studys B studies C study 3 A Does Jane live with her mother? B . A Yes, she lives B Yes, she is C Yes, she does 4 Where ? A he works B does he work C does he works 5 speak Spanish in class? A Do your teacher B Your teacher does C Does your teacher 6 A When have lunch? B At about 1.00. A do you B you C are you 7 My TV work. A isn’t B doesn’t C don’t 8 The class at 6:00. A finish B finishs C finishes 9 My grandmother to a computer class on Friday. A go B goes C is 10 We wear a uniform. A don’t B aren’t C no 11 I live in London, but my sister in New York. A live B lives C she 12 This chair comfortable. A isn’t B doesn’t C not 13 My mother three sisters. A have B has C is 14 He work. He’s a student. A doesn’t B don’t C do 15 The shops at 9.30 a.m. and close at 6.00 p.m. A is open B open C opens 16 Where you live? A are B does C do 17 What your brother do? A does B is C do 18 your parents have a car? A Is B Does C Do 19 a lot of coffee? A Drink you B You drink C Do you drink 20 He English. A no speaks B doesn’t speak C doesn’t speaks
1) The properties of building and materials are classified into four groups: physical, mechanical, chemical, technological, etc.
2) Resistance to salt aggression and other chemicals (wood)
An important advantage of natural stone is strength, durability, resistance to environmental influences, frost resistance (stone)
Strength; reliability; versatility; combination with other materials (metal)
3) All metals are divided into two groups: ferrous and non-ferrous
4) Ferrous metals and alloys contain iron, non-ferrous metals do not. Ferrous metals are mild steel, carbon steel, stainless steel, cast iron and wrought iron. ... Since they do not contain iron, non-ferrous metals have a higher resistance to corrosion and rust.
Объяснение: just decided
1)Building materials are divided into natural (natural) and artificial(Строительные материалы разделяют на природные (естественные) и искусственные)
2)Не смогу сказать.
3)metals are divided into two groups: ferrous and non-ferrous(металлы делятся на две группы: черные и цветные)
4)Ferrous metals are those that contain steel and iron.Non-ferrous metals do not contain steel or iron. This group of metals includes: aluminum and copper, Nickel and lead, zinc and tin, brass and gold, silver and platinum, as well as many others that do not contain iron.(Чёрными называются те металлы, которые содержат сталь и железо.Цветные металлы не содержат стали и железа. К данной группе металлов относятся: алюминий и медь, никель и свинец, цинк и олово, латунь и золото, серебро и платина, а так же многие другие, не содержащие железо.)