There was no sign _______ they had died from diseases such as bird flu - the main worry in such cases. Among the theories was _______ a truck had collided(碰撞)with the crowd.
Smallpox, a kind of disease, has now died ________.
The discovery of new evidence led to ________.
—How much farther shall we have to go? —Another five miles until we reach the mountain _______.
On yesterday interview, he didn’t make a(n)_________ at all; what’s the matter with him?
I think I was at school, ______I was staying with a friend during the vacation when I heard the news.