A.improving their job skills
B.economic necessity
C.improving their health
D.their love of learning
A.Several worldwide economic problems.
B.The causes and consequences of tradedeficit.
C.Lack of resources in underdevelopedcountries.
D.The value of exports against imports.
A.When a country has serious economic problem.
B.When a country sells more products overseas thanit imports.
C.When the value of the products a country importsis greater than the value of the product it exports.
D.Whena country can't develop its natural resources.
A.shortage
B.situation
C.increase
D.products