She must be tired. She _____________ (work) all afternoon

How many months ________________ (you take) piano lessons?

I ________________ (practice) the piano for 30 minutes.

How many times ________________ (I - tell) you?

They _____________ (travel) for months and they _____________ (visit) three countries so far.

I _____________ (read) all afternoon. I _____________ (read) five chapters!

How many books _____________ (she - write)?

He ________________ (not speak) on the phone for half an hour, just a couple of minutes..

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

Bob ________________ (run) ten kilometres.

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

The dog ________________ (bark) since midnight.

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