1.Steve has been sleeping since 10
am(утвердительное)
2.Steve hasn't been sleeping since 10 am(отрицательное)
3. Has Steve been
sleeping since 10 am? общий вопрос
4-6. What has Steve been doing since 10 am?
How long has Steve been sleeping?
Who has been sleeping since 10
am? специальные вопросы
7. Has Steve been sleeping since 10 or 8
am?
8. Steve has been sleeping
since 10 am, hasn’t he? вопрос с хвостиком
9. Steve hasn't been sleeping since 10 am, has he? вопрос с хвостиком