The emergency center is in great need of O-type blood,but there is__________ at hand.
________ , the idea of having to work under a woman defeated him.
________ everyone else wouldn’t go to the mountain area, he went without a second thought.
The reason for his success is ______ he worked very hard.
When we were young, every evening my brother and I ______ stay at home waiting for our mother.
______ I’m well again, I can go on with my work.