That is, human beings can discuss the past, present, and future as well as ideas that can not be seen. The topic sentence states that there are three characteristics of human language. The following sentences list these and discuss them. Human language does not say very much. Also, human language uses sentences.
Humans can also discuss the invisible.
Philosophers have spent centuries discussing what exists only in the mind. The topic sentence is too general and the details which support it are vague. Read all questions. Before writing the answer to any question, jot down key words and phrases for each question you will answer. Decide how many parts the question has.