时间表达（整点与半点） — 英语词汇题
题目
Tom 介绍自己的一天。根据句意和首字母提示，写出时间表达，每空一词。
1. I get up early. It's 6:30. It's h____ past six.
2. I have breakfast at home. It's 7:00. It's seven o'c____.
3. Classes begin at 8:00. It's e____ o'clock.
4. I go to bed at 9:30. It's half past n____.