Final answer:
The tone of President Reagan's speech, 'Tear Down This Wall,' was hopeful.
Step-by-step explanation:
The tone of President Reagan's speech, 'Tear Down This Wall,' can best be described as hopeful. In his speech, Reagan expressed a strong belief in the power of freedom and democracy to overcome barriers. He called for the dismantling of the Berlin Wall, emphasizing the importance of unity and the end of division.
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