3. depends on　 　　　　　 　　4. as well as　

4. broke out, spread 　　 　　　　5. prevented

7. gradually 　　 　8. floating

4. development 　5. existence 　 6. Global

5. Since you are all present, let’s begin our discussion.

_____ _____ you are all present, let’s begin our discussion.

Key :

4. Both he and his sisters have received a good education in the mountain area.

He, _____ _____ _____ his sisters, has received a good education in the mountain area.

3. Whether to hold the match or not is uncertain. They will see what the weather will be like tomorrow.

Whether to hold the match or not　 _____ _____ the weather tomorrow.

2. We found that it was impossible to prevent the disaster.

We found _____ impossible to prevent the disaster.

1. I didn’t know the news that the earthquake hit Southeast Asia until I got home.

_____ _____ _____ _____ I got home _____ I knew the news that the earthquake hit Southeast Asia.

5. Thanks to your help, we _________ a serious traffic accident.