The answer is B hope that helped
The answer is A i believe.
Here are the answers to the given sentences above:-No one answered the ad but me. It is used as PREPOSITION.-There is but one choice to make in this case. It is used as an ADVERB.-Sadie said she would go but she had to bring her sister. It is used as a CONJUNCTION
Answer:
We were disappointed by the mediocrity of the wine.
The carpenter did a mediocre job.
Explanation: