Moreover, even if that only 1 percent of passengers were unhappy with the procedures, the author's prediction that the company could maintain or increase the number of Avia's passenger is still open to doubt. Without sufficient information showing the customers' attitudes toward the other competitive companies' baggage-handling procedures, it is entirely possible that there are fewer, or even no passenger who complain the procedures of other companies. Therefore, it is totally possible that the Avia Airlines is losing its passengers to its competitors. If true, the author's prediction about the Avia's market would be seriously undermined.
In sum, considering the factors listed above, I have good reason to say that this argument unwarranted as it stands. To bolster it, the author should provide better evidence that (1) the passengers who did not filed (file) the complaint are actually pleased with those procedures (2) the complaint of the competitive companies are at least no less than that of Avia Airlines.
以上为大家推荐了一些GMAT作文考试的实用模板，考生可以适当参考，并通过大量的写作练习来逐步提高自己的GMAT作文的写作水平，从而在GMAT考试中取得更好的成绩。
