circle the complete sentence. my favorite subject is reading. school we have lunch walking out.

Brief Explanations:

A complete sentence has a subject and a predicate and makes sense on its own. "My favorite subject is reading." has a subject "My favorite subject" and a predicate "is reading" and is grammatically correct. "School we have lunch walking out." is a jumbled - up collection of words that doesn't form a proper subject - predicate relationship and is not a complete sentence.

Answer:

My favorite subject is reading.