问题
选择题
—Have you ever been to Shanghai, Mary?
—Yes. I ______ there for three days with my parents last year.
A．have gone
B．have been
C．went
D．was
答案
答案：D
last year去年表示过去时间，因此要求谓语动词要用过去时，又因for three days是段时间因此谓语动词必须要有延续性，故用was选D.