I believe the linking verb is “will”. It’s linking the subject “the United States of America” and the predicate “be 300 years old!”
They are deeply patriotic.
Answer: The tone is pretty crazy and excited, and the mood is also exciting
Explanation: there are a lot of exclamation points used
Ben asked tom if he actually liked whitewashing the fence and tom answered saying it's not everyday where a boy gets a chance to whitewash a fence. And it immediately got ben's attention, so he watched him paint and got very interested in it.