Final answer:
The two phrases that contribute to the accusatory tone of the excerpt are: 'Our repeated petitions have been answered only by repeated injury' and 'They have been deaf to the voice of justice and of brotherhood.' These phrases suggest that the government has been dismissive and harmful in response to the colonists' peaceful attempts to address their grievances.
Step-by-step explanation:
The two phrases that contribute to the accusatory tone of the excerpt are:
- "Our repeated petitions have been answered only by repeated injury."
- "They have been deaf to the voice of justice and of brotherhood."
These phrases suggest that the government has been dismissive and harmful in response to the colonists' peaceful attempts to address their grievances. The use of words like "injury" and "deaf" conveys a sense of frustration and resentment toward the government's actions.