Question

How long ... you ... here? 1) has ... lived 2) have ... been living 3) did ... live 4) do ... live

Answer 1

1.are stay 
2.you
3. you
4.You

Answer 2

The correct options are:

1. How long has he/she/it lived here?
2. How long have they/we/you been living here?
3. How long did he/she/it live here?
4. How long do they/we/you live here?

The appropriate option depends on the subject of the question and whether you are asking about the duration of their residence up to the present moment or at a specific past point in time.