PRESENT PERFECT

They ___ (TRY) to understand these instructions for half an hour and they're still not getting anywhere!

I'm nervous because ____ (NEVER DRIVE) on the motorway before.

I can't find my watch. I'm sure someone ____ (STEAL) it.

They ____ (VISIT) Italy several times but this will be their first trip to Sicily.

I ____ (STAND) here for hours, waiting for you to come.

This is the first time we ____ (EAT) real Spanish paella.

He started work here three years ago.

working

He ____________ the past three years.

I've never had problems with this typewriter before.

time

This is the _________________ problems with this typewriter.

She last saw him when she was ten.

seen

She ____________________ she was ten.

It will be my fourth visit to Athens.

been

I __________________ times so far.