- He has lived in this town for three years.
- It has been cold since last week.
- How long have you known her?
- I have not written to his parents for a long time.
- I haven't seen him since Sunday.
- She has used the bag for two years.
- My father has been busy since the week before last.
- Mr. and Mrs. White have lived in Japan since 1985.
- William has been in his room for three hours.
- We have been on this train for four hours.
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