Exercise 1: Find the word which has a different sound in the part underlined. Read the words aloud
1. A. thermal
B. thankful
C. there
D. thorough
2. A. pollution
B. earplug
C. dump
D. dust
3. A. algal
B. aquatic
C. contaminate
D. permanent
Exercise 2: Find the word which has a different position of the main stress in each
line.
1. A. medical
B. hospital
C. politic
D. electric
2. A. prehistoric
B. economic
C. linguistic
D. optimistic
