Question

only one of the applicants ........ eligible​

Answer 1

Answer:- only one of the applicants is eligible

Answer 2

Answer:

Only one of the applicants is eligible.

Explanation:

• The word ‘is’ is the verb. The subject is the part of sentence joins more specifically linking a verb.
• This form of the verb to be shows a state of being. It provides additional information about the verb.  

• In the given sentence, the subject is “only one of the applicants” which refers a single applicants on the whole applicants.
• So, the subject is third person singular. Then the verb must be was/is as per the tense.

• As per the tense, here we use “is” as the verb.