Exercise 1 In this exercise you have to read the situation and then write a sentence with the present perfect continuous ( I have been doing). Example: Tom is out of breath.(he / run) He has been running

1. Ann is very tired.(she/ work / hard)……………………….
2. Bob has a black eye and Bill has a cut lip. (Bob and Bill /fight) ……………
3. George has just come back from the beach. He is very red.
(he/ lie in the sun)………………………………………….
4. Janet is hot and tired. (she/play/tennis)……………………..

In the tundra, you can see the polar bears, reindeer, musk muskox, tundra wolves, arctic fox, arctic hare and lemmings. In the vast taiga zone inhabited by grizzly bears, Canadian lynx, cougars, wolves, fox, wolverine, caribou, elk, red deer, moose, marten, sable, beaver and otter. In the mountainous areas there are bighorn sheep and mountain goats and bison remained in the reserves. In the steppes of the main inhabitants are rodents: field mice, moles and gophers. Numerous lakes along the coasts of the country and settle in the colony a wide variety of birds. In fresh waters and coastal waters they are inhabited by numerous species of fish.

Insects are one of the oldest wildlife of our planet. Today, according to scientists the number of known species of insects has reached nearly two million different species. And every year on this list is added about seven thousand species of insects that have been previously zoologists do not even have a clue . Settling insects gradually , over time, occurred throughout the earth. You can meet them in tropical countries of Africa, and in the temperate latitudes of the Northern Europe. Even in the polar regions and arid deserts insects have adapted to life. There are also domestic insects that are adapted to live in close proximity to humans . Anyone with a child known types of insects such as butterflies , bees , beetles , bugs, flies, mosquitoes and many others. Every child is faced with leaving them in the first to the garden for a walk. Perhaps these are the first representatives of the wildlife encountered by the kid in your life . Structure of the insect is very interesting little child , as it is divided into three notable parts: head , abdomen and chest. Each insect has three pairs of legs and one , and sometimes two pairs of wings . Also, all the insects peculiar antennae on his head, that perform their function senses. In human terms insect life is very short and therefore its development is very fast . The whole cycle of formation lasts no more than six weeks and consists of four periods . Adult insects lay eggs from which larvae emerge in the future , and after some time of larvae formed pupa . And only from the pupa appears already Adult , shaped , viable insect. Insect life is very diverse and fascinating to watch , especially nice to look for insects such as bees and ants , whose activities are , in addition, are useful to humans.