1. oo

a. soon /u/

 
 

b. food /u/

 
 

c. school /u/

 
 

2. u_e (VCe)

a. rude /u/

 
 

b. intrude /u/

 
 

c. salute /u/

 
 

3. ue

a. clue /u/

 
 

b. true /u/

 
 

c. glue /u/

 
 

4. ew

a. drew /u/

 
 

b. chew /u/

 
 

c. flew /u/

 
 

More 'oo' material