1：昨天来我们学校参观的这个外国人来自美国。
2：你刚才说再见的这个人是谁？
3：母亲是一个工人的那个男孩是李平。
4：前天晚上你们拜访的这个妇女是个出名的作家。
5：昨天我买的鱼不新鲜。
6；在地震中毁坏的路已经重修好了。
7：他在一家卖手机的店子工作。
8：这是他过去学习过的地方。
9：昨天我们玩耍的这个地方很美。
10：他为什么迟到的原因不清楚。

1.The foreigner who visited our school yesterday comes from America.
2.Who is the person to whom you said bye-bye just now?
3. That boy whose mother is a worker is Liping.
4.The woman you visited the night before last is a famous writer.
5.The fish I bought yesterday is not fresh.
6.The roads which was broken in the earthquake has been repaired .
7.He works in a shop which sells mobilephone.
8.This is the place where he used to study .
9.The place in which we played yesterday is very beautiful.
10.The reason why he was late is unknown yet.