Here is the sentence again:

Jacques, a self-taught computer whiz, always hates going to his Introduction to Microcomputers class the reason is that both his textbook and professor are at least a year behind when they discuss software and internal components.

The blank space between class and the causes a fused sentence. At this spot, there are two complete sentences joined with no punctuation, which makes a major sentence error. Jacques always hates going to his Introduction to Microcomputers class is a complete sentence. The reason is that ... begins the next complete sentence.

To fix this problem, you could put a period after class and capitalize the T for the.

Go to the next sentence.

HomeTermsExercises MOOCHandoutsPresentationsVideosRulesAboutShopFeedback