—How long            in America?

—Two years. I came back last month.

A．have you studied

B．do you study

C．would you study

D．did you study

保险代理机构、保险经纪人应当具备国务院保险监督管理机构规定的条件，取得保险行业协会颁发的经营保险代理业务许可证、保险经纪业务许可证。