A sentence to say in one sentence is to say a sentence in one sentence! It is quite easy to say a sentence in one sentence if that is all you have to say. "The cat with brown hair, hair of brown has...
Yes We have had a good summer this year. We have had a nice time
The subject is the one that tells who is the sentence talking about, respectively.
Every one wants to experiment death
Let's stop this discussion about equal rights. We've been debating about this topic ad nauseam