Question

VI. Fill in each numbered blank with a correct word to complete the following passage. 
 Air pollution is a growing problem throughout the world. Indoor air pollution is (1) 
…………….. of the leading causes of lung cancer. Families in developing countries use open 
stoves for cooking and heating (2) …………….. homes. These homes do not have proper 
ventilation. The smoke, which is (3) …………….. of chemicals and carcinogens, gets trapped 
inside where families eat and sleep. Outdoor pollution also (4) …………….. diseases and 
illness, especially in industrial cities such as Beijing, China, where cancer is (5) …………….. 
leading cause of death. China relies heavily on coal, which is considered the dirtiest (6) 
…………….. of energy. According to the European Union, only one percent of urban dwellers 
in China breathe clean (7) …………….. on an average day. Neighbouring countries including 
Japan and Korea receive much of China’s pollution in the (8) …………….. of acid rain. This 
pollution results mainly from the coal powered factories, which produce inexpensive goods (9) 
…………….. North American and European consumers. Outdoor air pollution is also a concern 
in many wealthy countries. Those who live and (10) …………….. in urban centres such as Los 
Angeles or Toronto experience many warm days beneath a layer of smog. 

Answer 1

1 one 

2 their

3 full

4 causes

5 the 

6 source

7 air

8 form

9 for

10 work