The tense is all mixed up, but it looks like present is used most often, so "emitted" should be changed to "emits" and "pulled" should be changed to "pulls." I can't see the entire paragraph so just make sure that's consistent.
You don't need a comma in "running towards us with the fire extinguisher."
"Your mother and me" should be "Your mother and I." For reference try taking our "your mother" - it sounds pretty silly to say "me thinks" unless you're in the 1600s, right? And it should be "think" instead of "thinks."
Happiness:Misery Safety:Peril
Answer:
To commemorate something means to remember something and by doing so to honor it, as in “We would like to commemorate his many years of past service by presenting him with this lovely gold watch.”
follow up with the steps. is it multiple choice?