IV. Complete the sentences with a verb first in the positive and then in the negative. To show, to help. to book, to study, to
paint, to work, to walk, to play.
1. My sister ... English at school, but she German. 2.
The doctor ... last Saturday ,but he ... ... on Sunday. 3. Yesterday
Arman to work but he ... home. 4. My brother ... volleyball
when he was young, but he ... chess. 5. 1 ... the photos to
my brother, but I them to my sister. 6. The teacher ... me
with the exercise but she ,., .,, my friend. 7. The secretary
table for lunch, but she ... a taxi. 8. Ann ... the living room,
... the bedroom
a
but she ​

Spices diversity of wild animals differs greatly from one region of the world to another one. Almost all the world’s largest animals live in southern countries, where there is enough food and the weather conditions are more or less even throughout the year. For example, the biggest terricole is the African bush elephant, which inhabits vast savannas of this continent. The highest animal in the world is the giraffe, which also lives in Africa. Both the giraffe and the elephant are herbivorous, i.e they eat only plant food. Interestingly, the world’s largest carnivore lives in the Arctic. It is the polar bear, which is considered to be one of the largest, heaviest and the most dangerous wild animals. Its diet consists mostly of fish and small marine animals. And as for the biggest marine mammal, it is, of course, the blue whale. . To my mind, the most unusual wild animals live in Australia. It is, for example, the kangaroo – the most well-know marsupial mammal, which breeds the young in the pouch. It is also a koala bear – a sluggish wooly animal which is often called the symbol of Australia. Finally, Australia is home for the emu, the second largest flightless bird in the world.. As for my homeland, the most famous Russian wild animal is, of course, the bear. Also in vast taiga forests one can meet wolves, foxes, hares, squirrels, wild pigs, roe deer, and so on. Some of them can be rather dangerous, especially in mating season.

Horses and oxen were used for work during the Bronze Age.First wheels were like solid discs.At first holes were made in the wheels, and they became somewhat lighter. Then wheels with spokes were made. Finally, the wheel was covered with iron and then with rubber. The first steam carriage carried two people.George Stephenson demonstated the first locomotive in the United Kingdom.In Russia the tsar's government showed little interest in railway transportation.The Cherepanovs were mechanics and serfs, who invented and built a steam locomotive in the Urals.Under the boiler there were two cylinders which turned the locomotive's two driving wheels (there were four wheels in all). At the front there was a smoke stack, while at the back there was a platform for the driver.Yes, the locomotives are widely used in Russia.Steam locomatives, locomotives, electric locomotives, gas turbine locomotives etc.