pledge

"My friend told me there was something in the box, but I didn't know what it was yet. "

"My grandmother taught me how to bake cookies when I was a child. "

"My friendship with Sarah has lasted for many years. "

"Can you give me a guarantee that he will be fit for the match?"

"The student's unwavering allegiance to the school's debate team was evident in her dedication to practice. "

"The family prioritized security by installing a strong lock on the front door. "

"The school officially announced the new dress code on Monday. "

"My mother's assurance that I could succeed in the test boosted my confidence. "

"The close bonds and mutual support within the group showed a strong sense of fraternity. "

"The upcoming school holiday is a welcome break for the students. "

"a successful use of medicine;  a successful experiment;  a successful enterprise"

"He was dressed too formally for the occasion."