Complete the second sentence in each pair to mean the same as the first. Use the correct affirmative or negative form of the present perfect continuous.
1 It started snowing just a short time ago.
It _________________________for very long.
2 I put these jeans on yesterday afternoon, and I haven't taken them off yet!
I _________________________ these jeans since yesterday afternoon!
3 I started feeling unwell two days ago.
I _________________________well for two days.
4 She sat down in the sun three hours ago, and she hasn't moved.
She _________________________in the sun for three hours now.
5 I began this book nearly a year ago, and I haven't finished it yet.
I _________________________ this book for nearly a year.
6 We moved to Scotland three years ago.
We _________________________ in Scotland for three years now.