2 . I visited Hangzhou last summer, __________ is a beautiful city. (用适当的词填空)

3 . We are short of two people, without __________ we will need three more days to finish the work. (用适当的词填空)

4 . 很多年轻人都去了偏远地区追寻自己的梦想，他们中大部分都受过良好的教育。
Many young people, _______________ were well-educated, headed for remote regions to chase their dreams.

5 . 上周我通过了考试，那是极其重要的考试。
Last week I passed the examination，____________.

6 . ________ is known to all, Madame Curie won the Nobel Prize twice for her discoveries. (用适当的词填空)

7 . This year’s Nobel Prize for Physiology or Medicine has been awarded to Tu Youyou, ________ research led to the discovery of artemisinin. (用适当的词填空)

9 . _______ the guidance of the scientist on the earth, the astronaut did many experiments in the spaceship, _______ much help for knowing space.

A．Under; which we think it is	B．With; of which we think is
C．Under; which we think are of	D．With; we think which is of

10 . The number of smokers, _________ is reported, has dropped by 17 percent in just one year. （用适当的词填空）