1 since
2 for
3for
4for
5 since
6since
7for
8

1 he has been at the same address since 2003
2 I have learnt english language for ten years
3 Lan and han have been close friends for eight months
4 Ms han has been an english teacher for a long time
5 they have worked in the company since september
6 she has learnt to play the piano since she was six years old
7 it has rained for three hours
8 we are at the school gym. We have been here since 9 am this morning
9 Ly has been the top student in her class for many years
10 I have lived in thai binh since I was born.