Question

select the part of the subject that agrees with the bold verb. every morning, the puppy with floppy ears licks dr. neo cortexs cheek.

Explanation:

In English grammar, the verb agrees with the main noun in the subject. Here, "the puppy" is the main noun and "with floppy ears" is a pre - posal phrase modifying the puppy. So the verb "licks" agrees with "the puppy".

Answer:

the puppy