Identify and write the type of sentences (positive, negative, question): 1. I have not been working here for a long time. 2. Sally has not been drinking tea for a long time. 3. Has Sam been shopping for 3 hours? ответить!

1 negative form ( S+have has+Ving)
2 negative form (S+have has+Ving)
3 question form (have has+S+Ving)
Вот и ответы

"Nature provides free lunch, only if we control our appetites." This is a powerful sentence. Nature cannot provide for a community that is taking faster than it can produce. Example, a mother with nine children cannot make them all lunch at once. Some will be served before others, and they will have to be patient. If all the children want seconds, the mother will be tired and may not be able to provide the second meal. Statistics from Webecoist state that, "Oxygen-starved dead zones that cannot sustain life now cover an area approximately the size of Oregon. Dead zones are caused by excess nitrogen from farm fertilizers, factory and vehicle emissions, sewage and other pollution runoff." Humans causing these large, and increasing, dead zones will cause an extreme depletion in sea life. These animals are dying due to human error. 

I want to tell you about the life of teenage boy, The lifestyle of teenagers is very active/ They stand up earlier , study a lot, but do not forget about relaxsation. They like to go for a walk with friends after the school , go visit or visit favorite circle. Teenage boy aslo help their parents with housework or working in the garden. In free time teenagers like watching films and playing computer games. There are very common skiing and skating in winter because it is very good for health, The most favourite activity of teenagers in summer is swimming in a pond/ Sometimes teenagers go camping with their parents and learn a lot. It is so great! I thing teens should be very acrivity and gaily for everyone!