In face of danger, we need to stay _______. Only in this way can we come up with good solutions.
A number of books in the library _______ been stolen so that the number of them ______smaller than before.
The growing speed of a plant is influenced by a number of factors, _____ are beyond our control.
It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
I have reached a point in my life _____ I am supposed to make decisions of my own.
You will be successful in the interview ______ you have confidence.