Direction- Which of the phrases given below the sentence should replace the word or phrase given in bold in the sentence to make it grammatically correct? If the sentence is correct as it is given and no correction is required, mark 'No correction required' as the answer.
The interval between major earthquakes must be 200 years.
1
earthquakes may being
2
earthquakes must have be
3
earthquakes will be
4
earthquakes might be
5
earthquakes was be