I ________________ (practice) the piano for 30 minutes.

They ________________ (not work) since 5 o'clock. They just started an hour ago.

She ________________ (hang) up all all the pictures yet.

How long _____________ (you - know) Peter?

I _____________ (wash) the windows all day without any help! Two more and I can have a rest.

Somebody _____________ (eat) my cookies. There are very few left.

I ________________ (have) the same car for more than ten years. I'm thinking about buying a new one.

You ________________ (not eat) up yet.

"How long _____________ (you - be) in Canada?" "I _____________ (study) here for more than three years

We ________________ (miss) the buss twice this week.

________________ (you - ever - stay) in a castle?

Lately, I ________________ (think) about changing my career because I ________________ (become) dissatisfied with the conditions at my company.

Bob ________________ (run) ten kilometres.