Ответ:

первое предложение, второе предложение, третье предложение, четвёртое предложение, 6 предложение, 7 предложение, 9 предложение, 11 предложение, и последнее предложение

Ответ:

Sarah R, Celia G and Brian B put their lives at a risk while they were saving a friend Amy W from a fire yesterday

Sarah was just leaving the school building when she heard a bang and then a loud scream.

It was coming from the chemistry lab.

Her eyes were itching and she started coughing.

While she was shouting for help, the fire alarm went off

While they were running to the lab, Brian; tripped over something.

She was lying unconscious

They were all coughing, crying and laughing at the same time when the fire brigade and the ambulance arrived.