1. All of the flowers now raised here have developed from those _______ in the forest.
A. once they grew B. they grew once
C. they once grew D. once grew
2. In the office I never seem to have time until after 5:30 pm, _____ many people have gone home.
A. that B. which
C. whose time D. by which time
3. Is this the reason _______ at the meeting for his carelessness in his work?
A. he explained B. what he explained
C. how he explained D. why he explained
4. Luckily, we’d brought a road map without ______ we would have lost our way.
A. it B. that
C. this D. which
5. When he was working there he caught a serious illness from _____ efforts he still suffers.
A. which B. that
C. whose D. what
6. It’s said that he’s looking for a new job, one ______ he can get more money to support his family.
A. when B. where
C. that D. which
7. We are living in an age ______ many things are done on computer.
A. which B. that
C. whose D. when
8. The little time we have together we’ll try _____ wisely.
A. spending it B. to spend it
C. to spend D. spending that
9. The old building, behind _______ was a famous church, was _______ we used to work.
A. that, the place B. it, the place
C. which, where D. what, where
【答案与解析】
1. 选C。先行词是 those，可视为 those flowers 之省略。they once grew 前省略了关系代词 which。全句意为：这儿所养的花是由他们曾在森林里种植的花培养出来的。
2. 选D。by which time 引出的是一个非限制性定语从句，其中 by which time 相当于 and by that time。
3. 选A。注意不能选 D，因为动词 explained 缺宾语。
4. 选D。which 指 the road map。
5. 选C。from whose efforts he still suffers 为修饰 a serious illness 的定语从句，whose 在定语从句中用作定语，修饰 efforts。
6. 选B。where 引导定语从句修饰 one。注：one 在此指 a new job。类似地，下面一题的答案是C，因为one that 相当于 a problem that：
The problem is _____ has caused us a lot of trouble.
A. one B. that
C. one that D. that one
7. 选D。先行词是表时间的 age（时代），由于关系词在定语从句中作状语，故用 when。
8. 选C。该句的正常词序为 We will try to spend the little time we have together wisely.
9. 选C。第一空填 which，指 the old building;第二空填 where，用以引导表语从句。
