She is said _____in the United States for four years before she came back to wor

题干

She is said _____in the United States for four years before she came back to work in our company.

A．to study	B．to be studying
C．to have studied	D．studying

上一题下一题 0.64难度单项选择更新时间:2012-04-08 08:58:04

小学学科试题库

初中学科试题库

高中学科试题库