21. For many cities in the world, there is no room to spread out further, _______ New York is an example.
A. for which B. in which C. of which D. from which
22. He was educated at the local high school, ______ he went on to Beijing University.
A. after which B. after that C. in which D. in that
23. Human facial expressions differ from those of animals in the degree _____they can be controlled on purpose.
A. with which B. to which C. of which D. for which
24. Mark was a student at this university from 1999 to 2003, ____, he studied very hard and was made Chairman of the Students' Union.
A. during which time B. for which time C. during whose time D. by that time
25. The journey around the world took the old sailor nine months, _____ the sailing time was 226 days.
A. of which B. during which C. from which D. for which
26. The English play _______ my students acted at the New Year’s party was a great success.
A. for which B. at which C. in which D. on which
27. Gun control is a subject ________ Americans have argued for a long time.
A. of which B. with which C. about which D. into which
28. By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, ______ appeared a rare rainbow soon.
A. of which B. on which C. from which D. above which
29. I’m glad to introduce Mr. Smith to you, without ______ consideration our project would have ended in failure.
A. whom B. his C. whose D. who
30. The book was written in 1946, ____ the education system has witnessed great changes.
A. when B. during which C. since then D. since when
21. C。从句可以还原为New York is an example of many cities。
22. A。after which是“介词+关系代词”结构，强调时间先后。
23. B。to some degree表示“在某种程度上”，因此to which中to与先行词搭配有关。
24. A。这是“介词+关系代词+名词”结构，表示“在……期间”。
25. A。从句含有226 days of nine months。
26. C。act in the play表示“在……中扮演”。
27. C。“介词+关系代词”结构中，指人用whom,指物用which；介词的选择一看先行词，二看从句谓语动词，三看整个语境。本句中从句谓语动词含有argue about sth.这一搭配。
28. D。定语从句先行词是Mount Qomolangma，结合整个句子意思推断这里表示“彩虹出现在奥运火炬手上方”，故用介词above。
29. C。先行词Mr. Smith与consideration构成所属关系，故用whose，表示史密斯先生的关心。
30. D。因为句中的谓语has witnessed是现在完成时，所以要用since when。when指代上文中的in 1946，表示“这本书是1946年写的，从那以后教育体制发生了巨大变化”。
A. for which B. in which C. of which D. from which
22. He was educated at the local high school, ______ he went on to Beijing University.
A. after which B. after that C. in which D. in that
23. Human facial expressions differ from those of animals in the degree _____they can be controlled on purpose.
A. with which B. to which C. of which D. for which
24. Mark was a student at this university from 1999 to 2003, ____, he studied very hard and was made Chairman of the Students' Union.
A. during which time B. for which time C. during whose time D. by that time
25. The journey around the world took the old sailor nine months, _____ the sailing time was 226 days.
A. of which B. during which C. from which D. for which
26. The English play _______ my students acted at the New Year’s party was a great success.
A. for which B. at which C. in which D. on which
27. Gun control is a subject ________ Americans have argued for a long time.
A. of which B. with which C. about which D. into which
28. By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, ______ appeared a rare rainbow soon.
A. of which B. on which C. from which D. above which
29. I’m glad to introduce Mr. Smith to you, without ______ consideration our project would have ended in failure.
A. whom B. his C. whose D. who
30. The book was written in 1946, ____ the education system has witnessed great changes.
A. when B. during which C. since then D. since when
21. C。从句可以还原为New York is an example of many cities。
22. A。after which是“介词+关系代词”结构，强调时间先后。
23. B。to some degree表示“在某种程度上”，因此to which中to与先行词搭配有关。
24. A。这是“介词+关系代词+名词”结构，表示“在……期间”。
25. A。从句含有226 days of nine months。
26. C。act in the play表示“在……中扮演”。
27. C。“介词+关系代词”结构中，指人用whom,指物用which；介词的选择一看先行词，二看从句谓语动词，三看整个语境。本句中从句谓语动词含有argue about sth.这一搭配。
28. D。定语从句先行词是Mount Qomolangma，结合整个句子意思推断这里表示“彩虹出现在奥运火炬手上方”，故用介词above。
29. C。先行词Mr. Smith与consideration构成所属关系，故用whose，表示史密斯先生的关心。
30. D。因为句中的谓语has witnessed是现在完成时，所以要用since when。when指代上文中的in 1946，表示“这本书是1946年写的，从那以后教育体制发生了巨大变化”。
