A man give a presentation using an overhead projector.
A man is using a projector.
The woman is using the projector.
Susan had green eyes.
Poirot is not interested in the quarrel.
Several people buy cats from a small empanadas store.
What do you make of the bit of conversation you heard?
The Australians are doing all the hard work for the Asians.
I think this is a bad idea.