The man is talking with a lady.He gave us a talk last week(合并为复合句)

问题描述:

The man is talking with a lady.He gave us a talk last week(合并为复合句)
要怎么合并为复合句的
The man ______ gave us a talk last week______ _____with a lady

who is talking
The man who gave us a talk last week is talking with a lady.
意思是:上周给我们演讲的那个男的现在正在和一个女士谈话.