用所给单词的适当形式或根据汉语提示填空.
1/ I have____ (hundred) of books.
2/ Let's go high____(jump),shall we?
3/ I wish you____ ____(好运气).
4/ My sister works in a ____ ____(学校图书馆).
5/ We are just______ _____(及时)for the train.