__________ ups and downs in the past four years，Bob finally succeeded in extendi

题干

__________ ups and downs in the past four years，Bob finally succeeded in extending his business overseas.

A．Experienced	B．To experience
C．Having experienced	D．Experiencing

上一题下一题 0.85难度单项选择更新时间:2015-11-30 04:25:41

小学学科试题库

初中学科试题库

高中学科试题库