Fill in the blanks with "since" or "for"
EX15: Fill in the blanks with "since" or "for".
1. Mark has used the laptop three hours ____ 10 o'clock.
2. How many times have you read the book _ you bought it?
3. Mary hasn't eaten fish ___ Thursday.
4. We've known each other ___ ages.
5. My sister has owned the fashion shop __ 3 years.
6. It's three years __ Trang started learning English.
7. Peter and Linda have been married __ a year.
8. She has been to Paris __ a week.
9. He has stayed here ___ three days.
10. I have worked as a teacher ____ 2018.