Здравствуйте! Помогите с английским пожалуйста!:)
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задание во вложениях

1. has been trying
2. has been teaching
3. has been working
4. have been sleeping
5. has been sitting 
6. have been talking
7. have been looking 
8. has been dancing
9. has been ringing 
10. has been coming 

это то, что изменить нужно в скобках, остальное так же

1. has been trying

2. has been teaching

3. has been working

4. have been sleeping

5. has been sitting

6. have been talking

7. have been looking

8. has been dancing

9. has been ringing

10. has been coming