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.