--- Have you ever been to Tibet? --- Yes
题型：选择题
问题：
--- Have you ever been to Tibet?
--- Yes. I ____________ there three times in the year 2008.
A．went
B．have gone
C．have been
D．had been
--- Have you ever been to Tibet?
--- Yes. I ____________ there three times in the year 2008.
A．went
B．have gone
C．have been
D．had been