Which of the following sentences is grammatically correct and sounds the most natural?

This experiment is not a good representative of the whole study.

This experiment is not a good representation of the whole study.

This experiment is not a good representer of the whole study.

This experiment is not a good representing of the whole study.

Which of the following options shows the correct pronunciation of the word "diabetes"?

What sound does the letter "a" make in the word "instance"?


Which of the following phrases sounds the most natural?

He wants to be specialized in that field.

Which of the following sentences is grammatically correct?

The older I get, the smarter I try to be with my nutrition.

The older I get, the more smarter I try to be with my nutrition