Answer:
He/she/it is climbing.
Explanation:
Third person is describing a character using "he", "she" or "it". There is no "I" or "me" or "my". It is present; happening at the very moment. So "I am climbing the mountain (right now)." Progressive-moving along; going to finish up-in the process of doing.
Ann is the subject of the sentence
has taught is the verb phrase
students is the direct object
junior high are adjectives that modify the direct object students
for several years is a prepositional phrase that modifies the verb taught
Soldier battle is the answer that I think it is