Choose Present Perfect or Past Simple
I _____ (visit) Bob last month.
We _____ (promise) to help them already.
She _____ (never/do) anything bad.
She _____ (go) on holiday three weeks ago.
We _____ (not/do) our work yet.
She _____ (see) the film three times.
They _____ (swim) in the sea last summer.

I visited Bob last monthWe have promised to help them alreadyShe has never done anything badShe wenr on holiday three weeks agoWe haven't done our work yetShe has seen the film three timesThey swam in the sea last summer