单项选择题
A.shortage B.situation C.increase D.products
A.a country has serious economic problem B.a country sells more products overseas than it imports C.the value of the products a country imports is greater than the value of the product it exports D.a country can't develop its natural resources
A.People in Britain and the USA are interested in modern dance. B.It is popular to learn all kinds of dances. C.More audiences than before go to watch modern dances. D.Ballet Rambert is the most popular modern dancer.