Answer:
Explanation:
I haven't heard ...
I is first person singular.
The irregular verb form to use is have (not) heard.
But I didn't hear is the past tense that is also correct.
I hadn't heard is also correct.
The only one that is really wrong is D.
After the approval of the deregulation act of 1978, the CAB disappeared and reforms were implemented to promote competition among airlines.
<h3>What was the Airline Deregulation Act of 1978?</h3>
The Airline Deregulation Act is a set of federal laws that was signed into law in 1978 by United States President Jimmy Carter.
This law removed certain government controls on the commercial aviation industry. His goals included opening up the aviation industry to competition and opening up new opportunities for emerging airlines and secondary airports.
<h3>What results did this law have?</h3>
After its approval, this law brought with it numerous changes such as:
- It meant the end of the government process of establishing tariffs for domestic flights.
- It allowed international carriers to offer domestic flights in the US.
Learn more about Deregulation Act in: brainly.com/question/13436238
No hablar espanol amigo sorry
I think the correct answer to that question is three
