1. I have been studying English for five years.
2. I have had two mobile phones since I was 12.
3. She has been studying every evening for the exam next week.
4. He have had three different teachers this year.
5. We have taken four exams in last month.
6. I have been reading a lot since September.
Объяснение: Present Perfect Simple используется тогда, когда у нас нет определенного времени, но это когда- то было.
Present Perfect Continuous используется тогда, когда действие длится в течение какого-то времени
As we know, there were fires in Austria. many hectares of forest were on fire. Very cute animals live in Australia - koalas. They live in trees and feed on eucalyptus. but do not think that they are so cute and fluffy in case of danger, they can fend for themselves. Due to forest fires, their population has decreased by several thousand times. So that their population does not decrease, it is necessary to prevent fires and start breeding the coalition in the reserves. To reduce the number of fires, be careful with fires in the forests. and it is better not to kindle it again in the forest.