Spoken communication vs written communication - which one is the best?

oral communication is much more beneficial

It is said that verbal communication is much more influential than communicating through written words. I completely agree with this point of view.
There are a host of reasons why oral communication tends to be more efficient. Firstly, by using non-verbal languages such as body gestures, facial expressions and tones of voice, people can increase the effectiveness of the interaction. For example, in business, companies prefer having a conference in person than discussing via mobile phones, computers connected with the Internet since it is likely to show strong ideas, strategies through body language which helps to draw attention to other colleges. Secondly, it would be very fast for people to transmit information. Spoken communication would not take people a great deal of time as written communication which is beneficial to education in schools. For instance, teachers can repeat the lessons several times to support students in acquiring knowledge more effectively.

Written communication can be considered a good option among individual members. However, it may lead to misunderstanding in every conversation. This can be explained that some people tend to be weak at transmitting what they wish, for example, they face some problems with handwriting or lengthy ideas that other people might fail to understand their story as a whole. To illustrate this, my handwriting can be a good example. Back in high school, my handwriting looks not unintelligible compared to others' which made my teacher frustrated sometimes because they did not have any ideas about my works on papers, I was required to submit a few verbal assignments as a result.

In conclusion, I believe that oral communication is much more beneficial than written ones in most conversations.

While you did write more than the minimum number of words required for the essay, you did not do a very good job of representing your discussion. There are two problem paragraphs in this essay. The paraphrase in the first and last paragraph, and the first body paragraph. Let me get into the details below.

A complete paragraph is required for each presentation. The complete paragraph gets a minimal score for 3 sentences, but gets a better scoring chance with 5 sentences. Always aim to write 5 clearly developed paragraphs per presentation. Never 3 sentences. With 3 sentences you get your topic sentence into it and a simple explanation, but never a fully developed discussion. You need 2 extra sentences to get to that point in the paragraph.

The prompt paraphrases happens in 2 sections of this essay. The first paragraph (introduction) and the last paragraph (summary conclusion). You did a lousy job in both instances. Neither proper summarizes the discussion points presented in the original prompt (introduction paraphrase) and the body of paragraphs (concluding summary). Add to that the extremely long sentences which are run-on sentences pretending to be complex sentences and you will see why your essay ran into a heap of trouble when it comes to scoring.

Your second paragraph, the first body paragraph, contains a contradiction in the statement. You are discussing the importance of non-verbal cues in communication and yet, in the opening sentence you indicated that "There are a host of reasons why oral communication tends to be more efficient." If it is efficient then there is no need for non-verbal cues in communication. I believe you meant to say "inefficient". Be careful with your word usage. One mistake and your LR score will pay dearly for it. As in this instance, you misspoke in written form by saying efficient instead of inefficient. You clearly did not understand how to use the term properly so the LR, GRA, and C&C scores will have deductions. Clarity and proper word usage is important when it comes to increasing your score. You either increase or decrease your score based on the problems with your writing.

While your second paragraph has a good reason developed within, you may want to think about avoiding overly long sentences. These can cause stress for the reader because you take too long to get to the point. Be short but informative. You are not scored on number of words or sentence length. You are scored on clarity of thought and explanation plus, proper sentence development.