用关系副词where，when，who分别造三个定语从句。

1.What is the name of the town where we stayed last?
My neighbor bought this TV set in the shop where her brother works.
--------------
2.Einstein had to stop his research work in the year when the First World War broke out. That happened on the day when I saw you.
--------
3.The professor who gave us a lecture last Friday is from Beijing University.
The man (who/whom)you saw just now is a famous painter.

首先告诉你：when、where是关系副词，who是关系代词。

where:
(1)This is the place where we lived.
(2)She went to the hotel where David
has ever studied.
(3)I think the bookshop where my mother works is very nice.

when:
(1)I will never forget the time when I obtained the very high score.
(2)Did you know something about the year 1990 when I was born.
(3)Sally was born in 1573 when I was also born.

who:
(1)That is the person who you drove to London.
(2)I know the boy who is wearing a pair of red shoes very much.
(3)The man who works with that forign person is Jack.