______ it's a public holiday today,some firefighters in our city are still on duty.( )
A.AlthoughB.OnceC.If
单词辨音( )
chair
su ch
mu ch
s chool
both
la b
com b
box
h er
moth er
summ er
tig er
w ith
t ime
d ish
h ill
add
c ap
m ad
w ater