Question

fix the verb that doesn’t match the tense of the verb in bold. with a package in hand, the mail carrier knocks loudly and then rang the doorbell.

Explanation:

The bold verb "knocks" is in the simple present tense. To maintain tense consistency, the verb "rang" (simple past) should be changed to its simple present form "rings", as both actions (knocking and ringing the doorbell) are happening in the present context.

Answer:

Change "rang" to "rings", so the sentence becomes: "With a package in hand, the mail carrier knocks loudly and then rings the doorbell."