按所給的單詞，圈出相應(yīng)的字母．
sing

s

i

n

g

o

e

g

n

book

h

n

b

o

b

o

o

k

ruler

r

a

r

u

l

e

r

e

face

g

f

e

c

f

a

c

e

father

d

h

f

a

t

h

e

r

short

g

m

d

s

h

o

r

t

draw

d

r

a

w

a

k

e

n

mouth

j

m

o

u

t

h

t

n