What are some examples of complex sentences

My little sister is ackd me what is 200×300÷489 what! i willl give anyone 15 points

Read the excerpt from “the railroad earth.” o well anyway i'll be learning eventually to like the railroad and sherman will like me some day, and anyway another day another dollar. the narrator of this excerpt can best be described as friendly.optimistic.wealthy.intelligent.

The story behind the story is a a human interest article b concerned with the feelings of people involved in a headline event ca kind of special feature d all of these e none of these