(a) From the first sentence, particularly goes with condition.
(b) From the second sentence, everybody goes with is.
(c) From the third sentence, forecasts goes with enable.
In subject- verb agreement, if a subject is singular, its verb must also be singular and if a subject is plural, its verb must also be plural.
From the first sentence, the correct subject-verb agreement is;
The release of energised particles from the sun , coupled with particularly helpful overnight condition, are predicted to make the "Northern Lights" visible much further south than normal.
From the second sentence, the correct subject-verb agreement is;
'Everybody is talking about it. It's a once-in-a-decade opportunity that people really shouldn't miss.'
From the third sentence, the correct subject-verb agreement is;
'The forecasts given out by the weather office enable us to know when the skies will be clear.
Learn more about subject verb agreement here: https://brainly.com/question/1232784
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