IV.  IELTS candidates often use the wrong form of words or misspell words because of changes in form. Correct the mistake in each sentence. 
1 In general, people should eat more healthy and do some exercise. healthily
2 Pesticides may be harmy to our health. 
3 Some farmers feel that using natural fertiliser is too unconvenient. 
4 The media often give usefull advice about food. 
5 There has been a slightly drop in the popularity of fast food in my country. 
6 I don't think that wealth people should get the best food. 
7 Most people can easy do some exercise. 
8 The number of people who live to 100 has increased dramaticaly. 

I. Complete each of the sentences below with a word in the box. 
            healthy   unhealthy   healthier   healthiest   healthily 
1 The key to good healthy is eating a balanced diet.
2 Cooking at home can help people eat more .......... .
3 Hospitals can become ................. if they are not very clean.
4 People need exercise as well as a .... diet. 
5 Being generally active is much .................. than doing lots of exercise just occasionally.
6. Employees should be the .................. people in the hospital. 0 page 1 00 Word formation 

II. Which of the words in the box in Exercise 1 ... 
1 is a noun? health
2 is an adverb? 
3 are adjectives? 

I. which underlined part is pronounced differently

1. A. war    B work    C world    D whom

2. A twice    B twenty   C twofold   D twist

3. A winter  B answer   C award   D towards

4. A lawn    B allow       C drawing  D swimming

5  A students  B refuse   C united   D uncle 

6 A sword   B sweat    C swing    D swallow 

7 A mow    B know    C dawn    D window

8 A drain    B taxi driver   C handicap   D handsome

9 A castle   B twenty    C volunteer    D master 

10 A iron    B province   C drop   D promte