Please help me

29: We RODE, when suddenly, Jimmy HIT a stone.

30: While I SHOPPED someone STOLE my bike.

31: The pupils SAT quietly while the teacher WROTE some formulas on thr blackboard.

32: When the glass FELL on the floor, everyone STOPPED talking.

33: What DID YOU DO when the accident HAPPENED? (I think?)

34: It RAINED while I WAITED for the bus stop.

ofc, take my suggestions w/ a grain of salt! though I believe that's correct. past tense isn't too difficult :)

i dont know what you want me to answer

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long