✔ 最佳答案
My view is as follows:
The grammar of Sentence 1 is correct.
For Sentence 2, the spelling should be “student”.
The main difference is the use of tenses in the sentences. Sentence 1 has used present tense which means the student does not have the qualifications to be admitted into the school at present. If you use Sentence 2 with the spelling of “student” corrected, it means it is a fact in the past that the student was not qualified to be admitted. Whether the student can meet the requirement now is unknown.
Therefore, you could use the sentences in different situations to express different meanings.