15.He came out top in the exam，　　made his family very happy.

解析：which引导非限制性定语从句，代替前面整个句子。

答案：which

14.I have bought the same skirt　　she is wearing.

解析：the same+名词+as和……同样的。

答案：as

13.Don't talk about such things　　you are not sure about.

解析：such+名词+as像……一样。

答案：as

12.Do you still remember the happy days　　we spent together in Beijing？

解析：定语从句中缺宾语，用which，that或不填均可。

答案：that/which/不填

11.I visited Hong Kong last month，　　live my uncles and aunts.

解析：先行词为Hong Kong，在从句中作地点状语，所以用where，相当于in which，从句为倒装句。

答案：where

10.The train on　　he is traveling is late.

解析：当动词短语中的介词提前且先行词指物时，关系词用which。

答案：which

8.Lu Xun，　　real name is Zhou Shuren，wrote lots of novels and essays.

解析：先行词与从句中的主语为所属关系，用whose。

答案：whose

you think of another example　　this phrase can be used？

解析：定语从句中不缺主语，也不缺宾语，此须用关系副词where来引导从句。此处where＝in which。

答案：where

7.　　is reported in the newspaper，the war between the two countries has come to a stop.

解析：as此处引导非限制性定语从句，指代后面一句话的内容。

答案：As

6.I cannot forget the time　　I stayed in the country with those farmers.

解析：定语从句中不缺主语，也不缺宾语，此须用关系副词when来引导从句。

答案：when

5.This is the store　　my father runs.

解析：先行词the store是物，从句缺少宾语，用which，that或不填均可。

答案：that/which/不填