Select the option that will improve the given sentence by using the most appropriate verb.
Alexa have being working as a teacher for five years now.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Alexa has been working as a teacher for five years now.
The correct sentence is "Alexa has been working as a teacher for five years now" because it uses the present perfect continuous tense, which is used to describe actions that began in the past and are still continuing in the present.
The present perfect continuous tense follows the structure:
Subject + has/have been + verb (-ing) + object/complement.
The other options are incorrect due to misuse of auxiliary verbs or tense forms: "have" should be "has" for third-person singular, "being" should be "been," and the past continuous or simple past forms are not appropriate for this context.