1.My best friend is John.I know him for two years.
2.I've had this watch for three months.
3.My family has lived at the same address for five years.
4.I haven't spoken to my next-door neighbours since last weekend.
5.I know the person sitting next to me for nearly two weeks.
6.My hair has been the same length for three years.
7.I haven't been on holiday since an year.
8.I have these shoes since January.