1. He wrote a letter ________he explained what had happened in the accident.
2. Finally he reached a lonely island ________was completely cut off from the outside world.
3. There is no simple answer, _______ is often the case in science.
4. We have launched another man-made satellite, ________ is announced in todays newspaper.
5. A company _________ profits from home markets are declining may seek opportunities abroad.
6. However, there was a deep longing within me_______ never quite left.
7. Just then, a woman, ________ was out walking her dog, shook the tramp’s shoulder until he woke up.
8. Once there lived a rich man_______wanted to do something for the people of his town.
9. I now carry around a notebook in_______I write down lovely and inspiring phrases that I find.
10. He may win the competition, ________he is likely to get into the national team.
A. in which case
B. in that case
C. in what case
D. in whose case
11. Nowadays people are more concerned about the environment _______they live.
12. John invited about 40 people to his wedding, most of_______are family member.
13. When I arrived, Bryan took me to see the house_________I would be staying.
14. Mo Yan was awarded the Nobel Prize for Literature in 2012,________made one of the Chinese people’s dreams come true.
15. The book tells stories of the earthquake through the eyes of those________lives were affected.
16. Happiness and success often come to those________are good at recognizing their own strengths.
17. The president of the World Bank says he has a passion for China,_______he remembers starting as early as his childhood.
18. An ecosystem consists of the living and nonliving things in an area_________interact with one another.
19. Many countries are now setting upnational parks_________animals and plants can be protected.。