As a young boy, Mark displayed an interest in learning.
gerund: learning
Becoming a lawyer was his ultimate goal.
gerund: Becoming
gerund phrase: Becoming a lawyer
The teaching in his university demanded a great amount of diligence.
gerund: teaching
gerund phrase: teaching in his university
In addition to his classes, he devoted time each day for studying on his own.
gerund: studying
gerund phrase: studying on his own
Mark's searching for knowledge allowed him to graduate with honors.
gerund: searching
gerund phrase: searching for knowledge
Browsing in bookstores was popular with him and his friends.
gerund: Browsing
gerund phrase: Browsing in bookstores
Facing his teachers was never frightening for him.
gerund : Facing
gerund phrase: Facing his teachers