When it______ air pollution, Beijing faces the three “C” s-----cars,coal and construction,which lead to Beijing's thick air pollution.
四、Multiple choice(单项选择)15分 It looks as if they are going to _________ us a lot of money for the concert hall.
________ needs further discussion whether we'll build a laboratory or not.
Do you think that the way of Maori life in the village will be kept _________?
New Zealand is a(n)_________ country.
Farmers have turned to _________ deer because it can make a lot of money.