1. How long have you lived in the United States? (one year)
   AnswerI have lived in the United States for one year.
2. How long has Mary been a nurse? (April)
   AnswerShe has been a nurse since April.
3. How long has Karen known Tom? (1979)
   AnswerShe has known him since 1979.
4. How long have they studied English? (a few months)
   AnswerThey have studied English for a few months.
5. How long has Karen played tennis? (a long time)
   AnswerShe has played tennis for a long time.
6. How long has he worn glasses? (1975)
   AnswerHe has worn glasses since 1975.
7. How long has Emily played the piano? (high school)
   AnswerShe has played the piano since high school.
8. How long will you be on vacation? (three weeks)
   AnswerI will be on vacation for three weeks.
9. How long have you driven a car? (my birthday)
   AnswerI have driven a car since my birthday.
10. How long has Ron had his new computer? (last month)
    AnswerHe has had his new computer since last month.
11. How long has she owned the book shop? (ten years)
    AnswerShe has owned the book shop for ten years.
12. How long has Gary played football? (several years)
    AnswerHe has played football for several years.
13. How long have your friends been in town? (Monday)
    AnswerThey have been in town since Monday.
14. How long has Mrs. Smith lived on Clark Street? (many years)
    AnswerShe has lived on Clark Street for many years.
15. How long has the post office been closed. (five o’clock)
    AnswerIt has been closed since five o’clock.

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