Проблемы города на языке , например мы виливаем в речки и озёра , загрязням

                            ecological problems of the city and our world. we live in a very fragile environment. some people live in the city, and some in the countryside. nowadays people understand how important it is to solve the environmental problems. the most serious problems are: -pollution -noise from cars -destruction of wildlife - pollutions in its many forms now i want to tell you about water pollution. it is very serious for people. there is no ocean or a sea which is not used for a dump. the pacific ocean especially has suffered from the dumping because french government tests nucklear weapons there. britain alone dumps about 250,000 tons of industrial waste. the poison in the waste can be dangerous and kill fish, or sea animals. nuclear-poisened fish can be eaten by people, and this is horrible! also what is interesting factories and plants use only clean water from lakes and rivers, and after the water is used it goes back to seas, but greasy and another big problem is air pollution. once when americans decided to clean up the statue of liberty, first thing the had to do is to make a hole in her nose, to take away the acid rain that has collected inside. once it was the acid rain cause the polluted air of new yourk mixed with the rain and caused acid rain and it damaged the statue badly. if we go on like this, soon the earth would be polluted and we wouldn't be able to live on it. to make air and water clean again we need good filter on plants, factories, buses, cars, and nuclear power stations. but if we don't want it could die, would we keep on?                

Hello, my freind! i am really happy to know you are coming to visit me this weekend. i'll take you for a walk around the city. i'm going to show you my favourite park. we can go roller skating there. but remember it is autumn now, so be sure to fetch a raincoat and a pair of rubber boots! after that we may go to see my fellow-students in the cafe nearby. every saturday they play different games there and eat wonderful pizza. in the evening i plan to take you to the cinema to watch the latest movie by bekmambetov. or do you prefer a comedy? anyway, i'm sure we'll have much fan together! looking forward to seeing you!

he went to leningrad to see some friends (why).

why did he go to leningrad?

she put the mail on my desk (where).

where did she put the mail?

напишите след. предложения в вопросительной и отрицательной формах.

i (wait) almost two hours for helen yesterday.

i didn’t wait almost two hours for helen yesterday.

did i wait almost two hours for helen yesterday?

she (study) in our class last semester.

she didn’t study in our class last semester.

did she study in our class last semester?