Situation

◆More than 40 million foreigners, including {#blank#}1{#/blank#} and adults around the world are learning Chinese.

The reasons for learning Chinese

David

◆There are many {#blank#}2{#/blank#} for him to talk with Chinese or {#blank#}3{#/blank#} in Chinese in his business.

Bob

◆He became interested in Chinese {#blank#}4{#/blank#} and was amazed when he first watched Beijing Opera two years ago.

Lisa

◆China is becoming {#blank#}5{#/blank#} and quite a lot of people want to know more about China.

Indoor air pollution

Situation

 There is also air pollution inside homes, {#blank#}1{#/blank#} , hotels and other buildings.

 American doctors say that {#blank#}2{#/blank#} of the illnesses in the world have something to do with polluted indoor air.

 A lot of pollution comes from indoor activities such as smoking and {#blank#}3{#/blank#}.

Results

 Indoor air pollution can {#blank#}4{#/blank#} people's eyes and noses.

 50% young children and women of India die each year because of indoor air pollution.

Advice 

It is important to solve the indoor air pollution problem{#blank#}5{#/blank#}