Just use this room for the time being,and we’ll offer you a larger one___it becomes available
______from space, the earth with water _______70% of its surface looks like a “blue blanket”.
The colorful design _______ sixty candles and a flag will appear on the People Square on October 1.
In copying this paper, be careful not to _______ any word.
Who ________ a theory about black holes?
---How about your journey to Mount Emei? ---Everything was wonderful except that our car ________ twice on the way.