snitch

""Maria snitched on her classmate for cheating during the test." "

"The student's betrayal of his study group cost them the entire project. "

"My brother flunked biology because he cheated on his mid-term."

"He is a student of life."

"My grandmother grows the best tomatoes in her garden every summer. "

"My sister is very helpful, especially when it comes to organizing things. "

"The students cooperated to complete the group project on time. "

"My neighbour has two noisy cats."

"The crowd was distracted by a helicopter hovering over the stadium when the only goal of the game was scored."

"The student was considered an informer because he told the teacher about the other students' cheating. "

"My classmates and I are working on a group project for science. "

"The detention lasted for an hour after school. "