How long ...... (they / wander) about the streets around here?

How many tourists ...... (you / meet) today?

How much money ...... (the priest / collect) since Monday?

David and I ...... (wait) for you for over an hour. Where ...... (you / be)?

The shop assistant ...... (sell) four new computers since early morning.

The company ...... (receive) an invitation to a ball today.

The children ...... (lie) in bed the whole night.

Pete ...... (see) Lilly for over a year now. They make a wonderful couple, I suppose.

The police ...... (finally / catch) those dangerous robbers.

Mr Baker ...... (just / decide) to order a new IKEA catalogue for his wife.

How many people ...... (invite) to our wedding party?

How long ...... (the author / write) mystery books?