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.

I think I _____________ (like) chocolate since I was born

How long ________________ (she wait) for us?

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

How often ________________ (you clean) the windows this year?

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

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

I ________________ (practice) the piano for 30 minutes.

John ________________ (work) for the government since he graduated from Harvard University. Until recently, he ________________ (enjoy) his work, but now he is talking about retiring.

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

How many books _____________ (she - write)?