a. rich, clean, spoiled brats

b. the smartest kids in town

c. the worst kids in the history of the world

d. always the teachers' best students

a. matches

b. a chemistry set 

c. a cigar

d. a magnifying glass

a. helping to put out fires

b. the talks the fire chief gave

c. the sound of the fire sirens 

d. the free doughnuts that were given to the firemen

a. the firemen were able to practice their firefighting skils on a small fire

b. it taught the kids in town a lesson

c. the toolhouse looked awful and was sure to bring rats

a.  a rat 

b. a squirrel 

c. his goldfish 

d. his cat