Present perfect with adverbs of time-101

I haven't cleaned my room ____.

• for

• since

• still

• yet

They have _____ been to USA before. I will love it!

• just

• already

• never

• ever

Have you finished your work _____?

• just

• yet

• already

• ever?

We have known each other _____fifteen years.

• for

• since

• just

• already

I have _____ sent you the email. Check please.

• just

• already

• yet

• for

Have you _____ seen an elephant?

• just

• ever

• never

• still

She has worked here _____ she left university.

• for

• since

• just

• already

I have worked here _____ ages.

• for

• since

• just

• already

It's been opened ____last month.

• for

• since

• just

• already

I have lived in Merida ___ several years.

• for

• since

• just

• already