Question

use their correct model
this ___ not have happened​

Answer 1

I think must ..........

Answer 2

The correct statement is:

This should not have happened

Explanation:

• The statement explains of a situation which the speaker thinks that it was more probable of not happening.

• As a result of this the the situation may have towards which can easily fit correctly in the blanks given above. One of the word is 'should' and the other word is 'must'.

• The word must is added when there is a compulsion of the thing not to have happened.

• However there is no compulsion if the word 'should' is added

To know more about prepositions,

Some of the prepositions are incorrectly used in this following story ...

https://brainly.in/question/12968381