There are other gases contained in tobacco smoke, but they are not found in as great quantities as the carbon monoxide.
ball
band
base
basin
basket
bath
be
beautiful
because
bed
bee
before
behaviour
belief
bell
bent
berry
between
bird
birth
bit
bite
bitter
black
blade
blood
blow
blue
board
boat
body
boiling
bone
book
boot
bottle
box
boy
brain