He is conducting research on a new energy source.

He is researching about a new energy source.

He found the target and shot the arrow.

Personally, I think this movie is the best.

Your application is not covered.

A day has 24 hours.

I am majoring in auditory phonetics at university.

Articulatory phonetics is a study about the production of speech sounds.

Acoustic phonetics is the study of the physical properties of speech.

I am majoring in microbiology at university.