Part1 : Underline the correct word in brackets for each of the following sentences. (prefixes)
1. Is there an (nation, international) airport in your country?
2. My mother was sometimes (impatient, patience) with me because I was very lazy at home.
3. All kinds of microbes are (visible, invisible) to the naked eye.
4. Nobody likes Betty. She is a most (unpleasant, pleasant) person.
5. He is very greedy, so we (like, dislike) him.
6. Penicillin is an (anti-bacterial, bacterial) medicine, isn’t it?
7. John tried hard to solve that problem, but he was (unsuccess, unsuccessful.)
8. It is (wise, unwise) for a mother to leave her baby alone.
Part2 : Build each word in brackets with the appropriate form by means of using the suffixes.
9. Thailand is a…………(fame) country for rice, corn and cassava.
10. Is this a………….(day) newspaper or a…………(week) magazine ?
11. Don’t approach the snake because it is………….(danger).
12. His hobby is a…………….(collect) of stamps.
13. You should make up your……………..(decide) or else you miss the morning train.
14. Don’t walk over the carpets in your………….(mud) boots.
15. Somsamai is the most…………..(beauty) in her class.
Answer key
1. international
2. impatient
3. invisible
4. unpleasant
5. dislike
6. anti-bacterial
7. unsuccessful
8. unwise
9. famous
10. daily, weekly
11. dangerous
12. collection
13. decision
14. muddy
15. beautiful
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