Điền vào chỗ trống với since/for
1. She's lived here _since__ 1975.
2. He's been in London __for _ five days.
3. They haven't been used _for __ many years.
4. She's been working __since_ nine this morning.
5. I haven't eaten _for __ hours.
6. It has been raining __for _ ages.
7. India has been independant __since_ 1947.
8. They have been married _since__ October.
9. How many years is it _since__ you graduated from junior high school?
10. We have been waiting __for _ twenty minutes.