It was not such a good dinner _______ she had promised us.
A. like B. that C. which D. as
5、 The buses, most of _______ were already full, were surrounded by an angry crowd.
A. that B. it C. them D. which
【易错】容易误选 C，用 them 代指 the buses。
【分析】最佳答案是D。most of which were already full 为非限制性定语从句，修饰 the buses。类似地，以下各题也选D：
(1) His house, for _______ he paid $10, 000, is now worth $50, 000.
A. that B. it C. them D. which
(2) Ashdown forest, through _______ we’ll be driving, isn’t a forest any longer.
A. that B. it C. them D. which
(3) This I did at nine o’clock, after _______ I sat reading the paper.
A. that B. it C. them D. which
类似地，以下各题选 whom，不选 them：
(4) George, with _______ I played tennis on Sundays, was a warm-hearted person.
A. that B. him C. them D. whom
(5) Her sons, both of ______ work abroad, will come back home this summer.
A. that B. who C. them D. whom
(6) I met the fruit-pickers, several of _______ were still university students.
A. that B. who C. them D. whom
6、 He had thousands of students, many of ______ gained great success in their own field.
A. whom B. them C. which D. who
【易错】容易误选 B，用 them 代指 students。
【分析】最佳答案是A，many of whom gained great success in their own field 为非限制性定语从句。假若在many of… 的前面加上连词and，则选答案B。比较以下各题(答案均选A)：
(1) He asked a lot of questions, none of ______ was easy to answer.
A. which B. them C. what D. that