1.We watched the play Teahouse which was written by Lao She
2.The building which she is looking for is at the other end of the street .
3.The bridge which was built in 1956
has been rebuilt now.
4.The girl whose parents died in the earthquake is now living with her grandmother.
5.She is going to the town which I do not know.
6.He told me the reason why he did not attend the meeting.
7.The student whose father is a model worker studies very hard.
8.The train which Li Ming missed started at 4:50 p.m.
9.The hotel which the manager is staying at used to be a olace.
10.The medicine which Dr.Chen gave him was quite helpful.
11.This television ser which they have used for three years is still going strong .
上面回答是错误的,1、2句随意使用非限制性定语从句,语法不对,仅供提醒 .
郁闷：补充一次答案就成最后一个回答的了.She will never forget that day when she joined the Communist Youth Leafue on Oct.4,2000