Identify the complete adjective clause.

The car I drive has 50,000 miles on the odometer.

http://grammar.ccc.commnet.edu/grammar/clauses.htm#adjective_clauses

http://www.chompchomp.com/terms/adjectiveclause.htm

Let us know what you decide.

The complete adjective clause in the given sentence is "I drive".

To identify the complete adjective clause, we first need to understand what an adjective clause is. An adjective clause is a dependent clause that functions as an adjective in a sentence. It provides additional information about a noun or pronoun, and it usually starts with a relative pronoun (such as who, whom, whose, which, or that) or a relative adverb (such as when, where, or why).

In the given sentence, "The car I drive has 50,000 miles on the odometer," the clause "I drive" provides additional information about the noun "car." It tells us who drives the car, giving us a descriptive detail. Therefore, "I drive" is the complete adjective clause in the sentence.