yet/still/already

Hello,

I have to fill with yet/still/already in the given sentences(in the underlinned sentence only)

My answers are written as (a), and (b) if two possible answers. Please check it whether they are correct.

1. Can we wait a few minutes? I don't want to go out.

a)Can we wait a few minutes? I still don't want to go out.

b)Can we wait a few minutes? I don't want to go out yet.

2. I met Aunt Sally once, a very long time ago but I can remember her very clearly.

a)I met Aunt Sally once, a very long time ago but I can still remember her very clearly.

b)I met Aunt Sally once, a very long time ago but I can yet remember her very clearly.

3. I used to live in Delhi. I have many friends there.

a) I used to live in Delhi. I still have many friends there.

4. Have you finished your work?

a)Have you finished your work yet?

b)Have you finished your work already?

Please check my asnwers and correct if any error.

Thanks.