Fill in: controversial, exploited, burden, cultivate, officially, irreversible, sensational, ultimate, sustain, vulnerable.

1 Desertification is irreversible because it is impossible for it to be changed back.

2 This type of crop is vulnerable to disease if it isn't protected by pesticides.

3 She is studying medicine and her ultimate aim is to be a child psychiatrist.

4 The government has made the controversial decision to increase taxes on fuel.

5 Marine biologists have made some sensational discoveries of strange life forms in recent years.

6 Thanks for your offer of help, but I don't want to burden you with my problems.

7 Some scientists believe it will be possible to sustain life on other planets.

8 It has been suggested that farmers should cultivate potatoes rather than rice to help solve the world's food problems.

9 Children are exploited when they are forced to work for very little money.

10 The day of the wedding is officially a holiday for everyone in the family.

Complete the phrases with the following words: alternative, barren, harsh, profoundly, solar.

1 harsh conditions

2 alternative medicine

3 profoundly satisfying

4 alternative energy

5 barren landscape

Complete the sentences with the correct item.

land coastline coast soil

There are many small islands off the west coast of Scotland.

2 The house was surrounded by two acres of land.

3 Plants absorb moisture from the soilю

4 Britain's coastline stretches for 4,000 km.

b custom tradition habit

1 Edward has an annoying habit of tapping his foot when he's nervous.

2 India has a tradition of textile making that goes back hundreds of years.

3 It's a custom in many Asian countries to take off your shoes before you enter a house.