问题 选择题
语音知识
( ) 1. bought  
( ) 2. 1ength  
( ) 3. relative
( ) 4. monkey  
( ) 5. alone    
A. through
A. without
A. recent
A. blanket
A. belong
B. although
B. thus    
B. regular
B. unknown
B. also    
C. rough
C. birthplace
C. review
C. sandwich
C. among
D. thought  
D. northern  
D. republic  
D. engineer  
D. concert  
答案

1-5:  DCBAB

单项选择题
单项选择题