Question

Identify the sentence parts by placing the red abbreviations in their correct locations. Put parentheses around the prepositional phrases. Identify the subject, verb, and any complements (direct object, indirect object, subject complement, objective complement).
Sandy's throw to first base was short

Answer 1

Subject: Sandy's throw to the first base. Within this subject, you have an adjective Sandy's, and the central subject, throw. To the first base is the prepositional phrase because it begins with a preposition word TO. 
Verb: was short. Here, you have the predicate word WAS (which is a linking verb connecting the subject and the complement) and the subject complement SHORT (which is actually adjective predicate).