1. My friends have known each other FOR 5 years.
2. Mary has had this book SINCE Tuesday.
3. I have stayed at the hotel FOR 5 days.
4. He has lived in the country FOR many years.
1. My friends have known each other FOR 5 years.
2. Mary has had this book SINCE Tuesday.
3. I have stayed at the hotel FOR 5 days.
4. He has lived in the country FOR many years.