18.　By　nine　o’clock,　all　the　Olympic　torch　bearers　had　reached　the　top　of　Mount　Qomolangma,　_______　appeared　a　rare　rainbow　soon. (2008 高考试题 福建卷　

　　 　A.　of　which　　　　　　B.　on　which　　　　C.　from　which　　　　　D.　above　which

17.　Later　in　this　chapter　cases　will　be　introduced　to　readers　______　consumer　complaints　have　resulted　in　　 changes　in　the　law. (2008 江西卷)

A.　where　　　　　　　B.　when　　 C.　who　　　　　　　　D.　which

16.　They　will　fly　to　Washington, ______they　plan　to　stay　for　two　or　three　days. (2008 重庆卷)

　 　A.　where　　　　　B.　there 　　C.　which　　　　　D.　when

15.　For　many　cities　in　the　world,　there　is　no　room　to　spread　our　further,　_______　New　York　is　an　example. (2008 四川卷)

　　 A.　for　which　　　B.　in　which　　　　C.　of　which　　　　D.　from　which

14.　The　growing　speed　of　a　plant　is　influenced　by　a　number　of　factors,　_____　are　beyond　our　control.

(2008 湖南卷)

A. most　of　them　B.　most　of　which　C.　most　of　what　D.　most　of　that　

13.　 It is reported that two schools, ____ are being built in my hometown, will open next year. (2007年四川卷)

　 A. they both　 B. which both　 C. both of them　 D. both of which

12. After graduation she reached a point in her career ____ she needed to decide what to do. (2007年江西卷)

　 A. that　 B. what　 C. which　 D. where

11. He was educated at the local high school, _____ he went on to Beijing University. (2007年江苏卷)

　 A. after which　 B. after that　 C. in which　 D. in that

10. Today, we will discuss a number cases ____ beginners of English fail to use the language properly. (2007年陕西卷)

　　 A. which　 B. as　 C. why　 D. where

9.　 Last week, only two people came to look at the house, ____ wanted to buy it. (2007年安徽卷)

A. none of then　 B. both of them　 C. none of whom　 D. neither of whom