The dancers ...... (leave) the dance floor while the singer ...... (put) on her make-up.

The butcher ...... (count) the money while his assistant ...... (clean) the tables.

The sick gentleman ...... (lie) in hospital while his brother ...... (do) business with his colleagues and partners.

Derek ...... (polish) his shoes while some of the children ...... (play) baseball outside.

Jason's cousin ...... (window-shop) while his friends ...... (wait) for him at the corner.

Dr Kenneth ...... (go) over the bills while his wife ...... (water) the plants and bushes in the garden.

The singer ...... (perform) on stage while her manager ...... (watch) her from the distance.

The DJ ...... (play) some rock music at the party while the guests ...... (dance) to it.

Sarah ...... (put) together a report while her manager ...... (wait) in suspense for the news.

Kate's sister ...... (chat) with her boyfriend while her sis ...... (dance) with her father out in the barn.

The prisoners ...... (dig) a deep hole in the backyard and the warden ...... (inspect) the cells at the same time.

The chef ...... (watch) some TV programme and ...... (cook) the lunch at the same time.

Mr Brown ...... (wait) for the bus to arrive while his son ...... (rush) to school.

The tourists ...... (admire) the spectacular scenery while the guide ...... (take) a short break.

David ...... (smoke) a cigar while his supervisor ...... (drink) some coffee.