China ( )a sharp increase in the number of aged people over the past decade

分类: 作业答案 • 2021-12-28 11:32:06

问题描述：

China ( )a sharp increase in the number of aged people over the past decade
A sees Bsaw Cwill see D has seen
还望解释哈

答

D
这是个一般完成时,over the past decade,是一个标志.