In recent years,the economic development of the world has been unbalanced,with Americans ____ more...than they earn.A.spending B.to spend C.spent D.spend
问题描述：
In recent years,the economic development of the world has been unbalanced,with Americans ____ more
...than they earn.A.spending B.to spend C.spent D.spend
答
A 这是with 复合结构,要选非谓语动词,美国是主动去消费,所以用-ing形式.