### the fastest of

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**Mon Oct 26, 2020 1:27 am**a. He runs the fastest of any student.

b. He runs the fastest of all students.

c. He runs the fastest of any of our student.

d. He runs the fastest of all of our students.

Which of the above sentences are grammatically correct?

Which are natural?

Many thanks

b. He runs the fastest of all students.

c. He runs the fastest of any of our student.

d. He runs the fastest of all of our students.

Which of the above sentences are grammatically correct?

Which are natural?

Many thanks