6 Sam with his brothers, (argue/often) It......... ................... about the computer games, (be/usually)

To fill in the blanks in your sentence, you would use the correct forms of the verbs given in parentheses to describe an ongoing action: "Sam, with his brothers, **often argues** about the computer games; it **usually is** a heated discussion." So the complete sentence would be: "Sam, with his brothers, often argues about the computer games; it usually is a heated discussion." Let me know if you need further assistance!