Task 1


 1. include
 2. contain
 3. includes
 4. consists of
 5. contains
 6. include
 7. consists of
 8. consisting of
 9. contains
10. include
11. includes
12. consists of
13. contains
14. including



Task 2


1. contains

2. include

3. includes

4. contains

5. contains

6. includes

7. include

8. consists of


Task 3


1. did not have , have already received

2. was, have now put

3. received, have credited

4. has informed, have not yet received, sent


QUIZ

acid, base, catalyst, decomposition, element, fuel, gas, hydrocarbon,

inhibitor, jar, kerosene, liquid,

matter, nucleus, ore, pollen,

quicksilver, residue, solute, thermometer,

uranium, valence, waste, xenon,

yeast, zero