1. We have had a cold for a week.
2. They bought the new house in April.
3. My family has been here since Christmas.
4. We have not seen each other for 10 years.
5. Mr. Clark has worked in the bank for a long time.
6. Tom and John went to France last summer.
7. My sister started a new job yesterday.
8. I have not eaten in that restaurant for ages.
9. Mr. Jobinson taught in this school in 1978.
10. Mr. Robinson has taught in this school since 1978.
11. I have been writing this letter for six o'clock
12. Mr. Ha has given up smoking for five months
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