Directions: The sentence below contains a comma splice. A comma splice occurs when two main clauses are illegally joined with a comma alone. With your mouse, choose the best method for fixing the problem. You can always review the rules before you make your choice. Gustavo can tolerate any lecture, no matter how boring the instructor is, in his mind, Gustavo imagines that he is on board the starship Enterprise, blasting Romulans from his post on the bridge. ... Is in ... ... Is; In ... ... Is; in ...