Air pollution is___most serious problem in many major cities and___measires should be taken to deal填哪个冠词

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Air pollution is___most serious problem in many major cities and___measires should be taken to deal填哪个冠词
Air pollution is___most serious problem in many major cities and___measires should be taken to deal
填哪个冠词

Air pollution is___most serious problem in many major cities and___measires should be taken to deal填哪个冠词
1.the(最高级名词短语前面用定冠词)
2.不填(measures表示手段,不用特指)

the

第一个空添 the 理由:最高级前需加the修饰 .。第二个空 后面应该是measures 吧,所应该是some或many.

the most serious 最严重的(最高级,用the)
/ measures不用特指
O(∩_∩)O加油!