Directions: Fill in the blank with the appropriate article.

The U.S. military left firing ranges in _____ Panama Canal Zone littered with thousands of unexploded rounds.

Question

Question

Answer 1

The correct answer is 'The'

Key Points

The sentence is referring to a specific location, namely the firing ranges in the Panama Canal Zone where the U.S. military left unexploded rounds.
When we talk about a specific place or thing that is known to both the speaker and the listener, we use the definite article "the."

The correct sentence is: The U.S. military left firing ranges in the Panama Canal Zone littered with thousands of unexploded rounds.

Therefore, the correct answer is "option 3".