1. On a dark stormy afternoon, wind howled loudly, disrupting the class.
2. Suddenly, a knock on the classroom door surprised everyone.
3. Each knock resembled an ear-splitting crash, heightening tension.
4. The teacher, with a flourish, stood up, turned off lights, and opened the door.
5. Fear struck as the principal, in a torn suit, appeared abnormally monstrous.
6. A voice screeched, "He's a zombie," from the back of the room.
7. The teacher brandished her pen like a sword, revealing sharpened teeth.
8. Lurking, the two seemed to be searching for victims, causing terror.
9. The principal grabbed someone as thunder crashed, and lightning filled the darkened room.
10. The sound snapped them back; everyone returned to work as if nothing had happened.
1. It was a dark and stormy afternoon; the wind was howling so loudly we could hardly **hear** our teacher. *Remove "so" and change "here" to "hear."*
2. Remove "so" and add Suddenly, there was a **knock**, though - a comma after loudly knock on the classroom door. *Add "Suddenly" and fix the punctuation.*
3. It sounded as if the person's hand was going to break through the door. Each knock **was** an ear-splitting crash. *Change "persons" to "person's" and add "was."*
4. **With a flourish**, our teacher stood up, turned off the lights, and opened the door. *Move the phrase to the beginning for better flow.*
5. What we saw made us quake with fear - the principal filled the door frame. His suit **torn** and shrunken on his abnormally huge and monstrous body. *Change "tom" to "torn."*
6. "He's a zombie," **screeched** a voice from the back of the room! *Change "off" to "of" and add the missing "ed."*
7. Just then, the teacher whipped around, brandishing her pen in the air like a sword. When she spoke, we saw that her teeth had sharpened to points, making her look even more evil **than** normal. *Add a comma and change "then" to "than."*
8. **Lurking around the room**, we watched in terror as the **two** of them seemed to be looking for victims. *Add "two" for clarity.*
9. The principal reached out to grab someone by the throat. As a boom of thunder crashed and lightning filled the darkened room with an eerie light.
10. That crash of sound seemed to snap them out of it; each transformed back to their normal selves. Every student went back to work, as if nothing had happened. *Change "then" to "than" and add "as if" for better structure.*