Ⅰ. 根据句意及首字母提示完成单词（10分）
1. N_______ of the students has bought that new book. So they have to copy it.
2. Are you single or m_______?
3. Computers first a_______ in China in the 1960s.
4. Mr. Incredible is also a cartoon h_______ like Superman.
5. I bought a s_______ of stamps from the post office last Monday morning.
