Answer:
Metaphor : her students were a pack of wolves when they came into the room.
Simile : The marker shook like a leaf as Angela wrote her name on the board in the front of the room.
Onomatopoeia : he ding of the bell indicated the start of class
Personification : but when the opportunity knocked at her door, she decided to answer.
Alliteration : he had spent a stressful yet successful year
Oxymoron : 1) She introduced herself politely but laid down the rules
immediately.
2)She had spent a stressful yet successful year in school studying education, but this was her first day as a student teacher.
3)She immediately knew this class was going to be a challenge, so her only choice would be to use tough love.
Explanation: