Dreaming, like all other mental processes, it is a product of the brain and its activity26/50Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction. Dreaming, like all other mental processes, it is a product of the brain and its activity.like all it is of the brain its activityGiải thíchĐáp án là B it is => is, chủ ngữ là “dreaming” => thừa đại từ “it”