In our school there ______ a number of books on science and the number of them ______ growing larger and larger.
I won’t leave the classroom until my homework ______.
--- It’s reported that many people were hurt in Kunming Terrorist Attacks (恐怖事件)on March 1st. --- _______ bad news!
We may meet all kinds of difficulties in the future, but we should be confident enough toany challenge.
Millie is quiet and modest and easy________________.
She has finished typing but she doesn’t know _______ next.