Vocabulary Complete the list of musical instruments the missing words are in the dialogue in exercise 1 then check the meaning of all the words instruments clarinet

      i need a part-time job to earn some money, i have read some  advertisements, and i  decided  to chose a  baby-sitter  job. 

      first of all i like kids so much. i can play with the all day. i  always  wanted to have a lot of  younger brothers and sisters.

          second - the family offers a good money for this job. that is important for me too.

at last, but not at least they sad, that they would take me to the cruise with them this summer, so i could help them with their kids there. what could be better then that?

linda will arange the students exchange, will not she ? your parents were not at the cinema yesterday, were they? denis can play the guitar, can' t he? we are not going to write her a letter, are we? you have a lot of friends, have not you? some members of his football team gave an interview to youth magazine, did they?

environmental pollution   the technology and other scientific innovations have given us boundless opportunities to explore the world. at the same time, they have done much harm to the environment.   firstly, it is the atmosphere pollution. plants and factories emit harmful gases. in the process of industrial production lots of wastes are thrown into the air.   secondly, hydrosphere pollution is not less important either. the leakage of oil or some other kind of fuel for technical reasons can cause a serious environmental accident. but it takes a long time the agueous medium to recover.   thirdly, usage of differentchemicals to kill detrimental insects or heighten the productivity erodes the soil and exhausts it of fertility.   however, it should be noted that nowadays humans are trying to apply new waste-free ways of manufacture. it means that people are worried about their future life.   to sum up, it is necessary to fulfil our intentions on preservation of the environment so as to keep the world for our descendants and provide them with reliable existence.