1 . There comes a time________ China will do much good to all the people in the world. (用适当的词填空)

2 . I was asked to explain the project with the help of a flow chart, ______ was a big challenge for me.(用适当的词填空)

3 . There are many good websites,________you can check out the latest research and discoveries in the science world. （用适当的词填空）

4 . Rescue workers were repairing the house ________ roof was destroyed again in the big fire. (用适当的词填空)

5 . It is the third time that she has won the race, ________ has surprised us all.

A．that	B．where
C．which	D．what

6 . Jane moved aimlessly down the tree-lined street, not knowing ______she was heading. （用单词适当形式填空）

7 . Perseverance is a kind of quality and that’s _____ it takes to do anything well.

A．how

B．which

C．what

D．where

8 . There is nothing we can to help Linda, ______ circumstances are beyond our control.(用适当的词填空)

9 . A modern city has been set up in ___________was once a wasteland. (用适当的词填空)

10 . He lives in a hotel,________is only five minutes’ walk from here. （用适当的词填空）