9.(2014·浙江考试院抽学校高三抽测测试)The products, several of ________ have been recently introduced, seem to be well accepted.
答案：which 解析：考查定语从句。句意：这些产品，其中一些近来已经被引进了，看起来被大家广泛接受。该句中，先行词为The products，引导定语从句的关系词作介词of的宾语，所以用which。
10.In spite of all ________ has been said, quite a lot of people are still uncertain about the prices of housing in China.
答案：that 解析：考查定语从句。先行词为不定代词all，关系词在定语从句中作主语，所以用that引导定语从句，且不能省略。
11.—I can't find Mr Smith. Where did you meet him this morning?
—It was in the hotel ________ he stayed.
答案：where 解析：考查定语从句及强调句的省略形式。where he stayed是定语从句，修饰先行词the hotel。答语使用了强调句的省略形式，将其补充完整应为“It was in the hotel where he stayed that I met him this morning.”。
12.(2014·南京高三模考)—How do you understand life?
—It is a constant match ________ the greatest opponent is yourself.
答案：where 解析：考查定语从句。句意：——你如何理解生活?——它是一场没有尽头的比赛，在这个比赛中最大的对手是你自己。根据句子结构可知，这是一个定语从句，先行词是a constant match，空处在定语从句中充当地点状语，故用关系副词where。
13.(2014·沈阳高三质量监测)—When did you first read Mo Yan's stories?
—In 2005 ________ I was attending high school.
答案：when 解析：考查定语从句。分析句子结构可知，2005是先行词，关系词在后面的定语从句中充当的是时间状语，故用关系副词when。
14.(2014·成都高中毕业班诊断性检测)American students take part in a wide variety of after-school activities ________ they develop their social skills.
答案：where 解析：考查定语从句。分析句子结构可知，空处为关系词引导定语从句，修饰先行词activities，且关系词在从句中作地点状语，所以用关系副词where。
15.(2014·湖南“五市十校”高三联合检测)High school is a good time ________ we learn to give serious thought to our future.
答案：when 解析：考查定语从句。句意：高中时代是一个美好的时代，在这个时代我们应该学会认真地思考我们的未来。分析句子结构可知a good time为先行词，后面的定语从句缺少时间状语，故用关系副词when。
