Are these sentences correct?

I said both were possible, didn’t I?

I didn’t need the results for ‘an’ because I only needed the results for ‘a’ to prove to you that I was right.

Hi beesneees,

Could you reply to my last post?

thanks

I secured a good rank (in the UK we would use ‘mark’ or ‘grade’, not ‘rank’) and earned admission into the prestigious MIT.
I secured a good rank and got into the prestigious MIT. <-- far less formal.

Hi beesnees,

Thanks. So there is no “the” before admission right in this sentence, right?

I secured a good rank and earned admission into the prestigious MIT.

Can it be rephrased in some other better way, if possible?

I secured a rank which was good enough to earn me admission into the prestige/prestigious college of my choice: MIT.

So this is correct, right?

I secured a rank which was good enough to earn me admission into the prestigious MIT.

I would avoid the phrase “into the prestigious MIT” in a variety of circumstances. What is the context?