classes: lecturer. The reason why Mr. WZJWZ31's grade is not high is that Mr. WZJWZ31 is not mainly involved in the teaching of the subject, he is almost only present in the class as to be present. curriculum. The reason why Mr. WZJWZ31's grade is not high is that Mr. WZJWZ31 is not mainly involved in the teaching of the subject, he is almost only present in the class as to be present. facility. The reason why Mr. WZJWZ31's grade is not high is that Mr. WZJWZ31 is not mainly involved in the teaching of the subject, he is almost only present in the class as to be present. general. The reason why Mr. WZJWZ31's grade is not high is that Mr. WZJWZ31 is not mainly involved in the teaching of the subject, he is almost only present in the class as to be present.