(5)______ , there have been some developments recently. Sensors are available to help the robot locate objects and avoid obstacles. We have the technology to produce the hardware. All that is missing the softwarethe programs that will operate the machine.

Ever since it was first possible to make a real robot, people have been hoping for the invention of a machine that would do all the necessary jobs around the house. If boring and repetitive factory work could be (1)_____ by robots, why not boring and repetitive household chores too? For a long time the only people who really gave the problem their attention were amateur inventors And they came up against a major difficulty. That is, housework is actually very complex It has never been one job it has always been many. A factor robot (2)_____ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory. A housework robot on the other hand, has to do several different (3)_____ of cleaning and carrying jobs and also has to cope (4)______ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs. (5)______ , there have been some developments recently. Sensors are available to help the robot locate objects and avoid obstacles. We have the technology to produce the hardware. All that is missing the softwarethe programs that will operate the machine.

A housework robot on the other hand, has to do several different (3)_____ of cleaning and carrying jobs and also has to cope (4)______ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs.

Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________ wildlife.

A housework robot on the other hand, has to do several different (3)_____ of cleaning and carrying jobs and also has to cope (4)______ all the different shapes and positions of rooms, furniture, ornaments, cats and dogs.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________ if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (3)________and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________ wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________, unless we can solve this problem.

Trees are among the biggest and longest-living things on Earth, some dating back longer than the oldest buildings. But (1)_______ being nice to look at, trees also play an important role in improving the quality of our lives. On a world-wide (2)_______, forests help to slow down the effects of global warming by using up the gas known as carbon dioxide and giving (3)_______ the oxygen we need to breathe. At local neighborhood level, trees also (4)_______ important environment benefits. They offer shade and shelter, which in (5)_______ reduces the  amount of energy needed to heat and cool nearby buildings; at the same time, they also remove other impurities from the air we breathe.

None of the exercise should (5) _____ you any pain, but it is best to start slowly at first. The best time to practise is either in the morning or in the evening. Beginners find it easier in the evening when the body is more supple.

Yoga can be practised by anyone, at any age, in any physical condition, depending on physical needs. For example, athletes and dancers can practise it to (2) _____ their energy and to improve stamina; executives to give a much needed (3) _____ to their overworked minds; children to improve their memory and concentration.

Yoga can be practised by anyone, at any age, in any physical condition, depending on physical needs. For example, athletes and dancers can practise it to (2) _____ their energy and to improve stamina; executives to give a much needed (3) _____ to their overworked minds; children to improve their memory and concentration.

American folk music originated with (1)________ people at a time when the rural population was isolated and music was not (2)________ spread by radio, records, or music video.

American folk music originated with (1)________ people at a time when the rural population was isolated and music was not (2)________ spread by radio, records, or music video. It was (3)_______ by oral traditional and is noted for its energy, humor, and emotional impact. The major source of early American folk songs was music from the British Isles, but songs from Africa as songs of the American Indians have significant part in its heritage. Later settler from other countries also contributed songs. In the nineteenth century, composer Steven Foster wrote some of the most enduringly popular of all American songs, (4)_________ soon became part of the folk tradition. Beginning in the 1930s, Woody Guthrie gained great popularity by adapting melodies and lyrics and supplying new ones as well. In the 1950s and 1960s, singer – composers such as Peter Seeger, Bob Dylan, Joan Baez continued this tradition by urban’ folk music. Many of these songs deal (5)________ important social issue, such as racial integration and the war in Vietnam

The most successful animals on earth - human beings - will soon be the only ones (5)________, unless we can solve this problem.

Cartoon film have very (1)_______ limits. If you can draw something, you can (2)_______ it move on the cinema screen. The use of new ideas and advanced computer programs means that cartoons are becoming exciting again for people of all ages. By the end of the 1970s, the cinema world had decided that cartoons were only for children. But soon (3)______ , one or two directors had some original new ideas. They proved that it was possible to make film in which both adults and children could share the fun. However, not every cartoon film was successful. The Black Cauldron, for example, failed, mainly because it was too (4)_______ for children and too childish for adults. Directors learnt from this mistake, and the film companies began to make large (5)______ of money again

A factor robot (2)_____ one task endlessly until it is reprogrammed to do something else. It doesn’t run the whole factory.

But soon (3)______ , one or two directors had some original new ideas. They proved that it was possible to make film in which both adults and children could share the fun. However, not every cartoon film was successful.