I __the Great Wall when I__in China two years ago. A saw was B ha_英语解答

I __the Great Wall when I__in China two years ago. A saw was B have seen was C saw:have been
D have seenhave been

人气：323 ℃　时间：2020-02-03 12:08:10

解答

A saw was
when I,因此是过去时而不是完成时.
saw sth.
was in China
A.