Choose the antonym

1) inert	a) active	b) rapid	c) slow
2) bond	a) surround	b)separate	c) break
3) cheap	a) high	b) strong	c) expensive
4) suitable	a) tensile	b)unfit	c) broken
5) resist	a) persist	b) assist	c) divide
6) harden	a) soften	b) indurate	c) band
7) natural	a) normal	b) bright	c) artificial
8) harmful	a) diseased	b) spoilt	c) useful
9) rapidly	a) slowly	b) fast	c) proper
10) strong	a) hard	b) weak	c) heavy
11) break	a) crack	b) repair	c) change
12) prevent	a) save	b)	c) permit
13) reduce	a) apply	b) enlarge	c) produce
14) strength	a)weakness	b) length	c) durability

Exercise 3

Fill in the gaps with these words: incorporate, concrete, span, rock, impurities, character, exceed, bend, tensile, bond, denote, pebbles, edge.

1. … a very hard building material made by mixing together cement, sand, small stones and water.

2. This new adhesive can … metal to glass.

3. Mountains and cliffs are formed from ….

4. The colour red is used to … passion or danger.

5. All natural minerals contain ….

6. The beach was covered with smooth white ….

7. If a material is …, it can be stretched.

8. If a bridge …s an area of water, especially a river, it goes from one side to the other.

9. He stood at the water's … staring across the lake.

10. Working hours must not … 42 hours a week.

11. Suggestions from the survey have been …ed into the final design.

12. The idea was to modernize various aspects of the house without changing its essential ….

13. The road …s to the left after the first set of traffic lights.

Exercise 4

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