1. Your brother, who lives in Spain, is coming to visit us, isn't he?
2. A young lady was annoyed by her boyfriend she's sensitive.
3. Every old house has its strange stories, doesn't it?
4. There's nobody here related to me.
I think B shows the best sentence fluency because all the others are really choppy sentences. Ther is constantly an abrupt stop in the other sentences.
Be more specific, I cannot understand that.
The answer is should be b
