. Complete the sentences. Put “for” or “since” into each gap.
1. It has been raining ________________ lunch time.
2. My boss will go away ________________the next ten days.
3. I’m staying in England ________________ a year.
4. She has lived in London _______________ 1985.
5. Please hurry up! We have been waiting _______________ an hour.
6. I have known her _______________ January.
7. Nam’s father has worked in this company _______________ 20 years.
8. Have you learned English _______________ a long time?
9. I haven’t seen Tom _______________ Monday.
10. The house is very dirty. We haven’t cleaned it _______________ ages.
11. She has been sick _______________ Wednesday.
12. John has worked in that firm _______________ six years.
13. He has been in the hospital _______________ almost a month.
14. They haven’t sent him any money _______________ last summer.
15. She has not eaten anything _______________two days.
16. They have been friends _______________ high school.
17. They have lived with her parents _______________ they were married.
18. We’ve lived here _______________ 1999.
19. I haven’t seen Linh _______________ my birthday party.
20. That building has been there _______________ the 19th century.