g,k,h,j,q,x,z,c(1)

Place (but do not click) your mouse on a consonant, a pop-up window will appear on your screen to give you the meaning of the word. If you click on a vowel with a tone marker, you will hear the word read out loud.

 
a
o
e
i
u
ü
g
     
k
     
h
     
j
       
q
       
x
       
z
   
c