enlightening

"The concept of teamwork is important in our school's project groups. "

"My knowledge of history helped me understand the current political situation better. "

"He is a student of life."

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

"Only a small fraction of the students passed the difficult math test. "

"My daughter's teacher is very kind and helpful. "

"Do you need a gift for that special someone?"

"The sun enlightens the Earth."

"The contest was long, but the Romans finally conquered."

"The teacher patiently explained the math problem, and the students were able to understand the steps involved. "

"The explanation was long and drawn-out."

"The sun enlightens the Earth."