I believe the linking verb is “will”. It’s linking the subject “the United States of America” and the predicate “be 300 years old!”
Hey mate!
In grammar, modifier is an optional element in clause structure or phrase structure.
For example, This is a red carpet...Here red is a modifier which is modifieing the carpet.
hope it helps!
Answer:
to show that the land has been covered by floodwaters
Luckily for our side, Jim was ready for the ball and easily caught it and tagged the runner out.
