
1. Which is correct? 
a) 
for a long period 
b) 
since a long period 

2. Which is correct? 
a) 
for 6 years 
b) 
since 6 years 

3. Which is correct? 
a) 
for 1992 
b) 
since 1992 

4. Which is correct? 
a) 
for 6 weeks 
b) 
since 6 weeks 

5. Which is correct? 
a) 
for 8 months 
b) 
since 8 months 

6. Which is correct? 
a) 
for 10 minutes 
b) 
since 10 minutes 

7. Which is correct? 
a) 
for a long time 
b) 
since a long time 

8. Which is correct? 
a) 
for ages 
b) 
since ages 

9. Which is correct? 
a) 
for March 18 
b) 
since March 18 

10. Which is correct? 
a) 
for the end of last year 
b) 
since the end of last year 

11. Which is correct? 
a) 
for I joined the firm 
b) 
since I joined the firm 

12. Which is correct? 
a) 
for 10 hours 
b) 
since 10 hours 

13. Which is correct? 
a) 
for 10 o' clock 
b) 
since 10 o'clock 

14. Which is correct? 
a) 
for the beginning of the year 
b) 
since the beginning of the year 

15. Which is correct? 
a) 
for a six month period 
b) 
since a six month period 

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