1 . In August, radioactive wastewater from Japan was released into the Pacific Ocean, _______ effects people are still suffering.

A．from which

B．in which

C．from whose

D．in whose

2 . Tom wrote many children’s books, nearly half ________ were about campus culture.

A．of whom

B．which

C．of which

D．of that

3 . People sit uncomfortably on plastic chairs, looking through old magazines, ________ have been read hundreds of times previously.

A．all of whom

B．each of whom

C．all of which

D．each of which

4 . Additionally, from time to time I will assign group work to be completed in class or short assignments to be completed at home, both of which will be graded. (分析并翻译)
_________________________________________________________
_________________________________________________________

5 . “代词＋of which/whom”引导的非限制性定语从句
Previously, water quality in the Li River suffered greatly from an increasing volume of tourists, __________________.
以往，漓江的水质因游客量的增长遭到了严重破坏，很多游客经常将垃圾扔入江中。

6 . Most of their musical instruments are really just sticks found on the ground,__________________________________(其中有一种令人惊叹的乐器) called the didgeridoo.(根据汉语提示完成句子)

8 . There are many new central leaders in China now, of ________ many once worked in the western provinces. (用适当的词填空)