Present Perfect review

1- Experiences

ever  /  never

Have you ever been to London?

My brother has never worked abroad. 

2- Unfinished actions

for  /  since  / how long...?

How long have you worked here in La Pineda?

I've worked here for 6 years. 

I've worked here since 2007.

3- yet / already

Have you finished your homework yet?

No, not yet. I haven't finished it yet. 

Do you want to see this film?

No, I've already seen it. 

4- Recent actions

just

My sister has just started a new job.