根据句意和首字母提示，补全下列单词。

1. Be q_______! Or we will be late for school.

2. Lily got a b________ on her birthday party. She wanted to ride it to school.

3. We studied in No.1 M________ School in 2007.

4. Now many Americans are interested in Chinese history and c________.

5. There is n_______ difficult in the world if you put your heart into it.