Prepositional phrases
The study (of geography) teaches us (about the features)(of other lands.)
(At one time)Philadelphia was the capital
(of the United States.)
The report (of the secretary) was given
(at the beginning)(of the meeting.)
(In the glow)(of the fading light,) we drove (along the road.)
Perfect.
Recognizing prepositional phrases is one of the most valuable skills in understanding grammar. Keep up the good work!