The teacher came in ____ a book under his arm. [ ]

Jack gets up very early every morning, He’s _____ late for class.

Have you heard the latest news?—Yeah, Xi Jinping became new president of China.

Tom. Why do you look so tired? — Because I often study late ______ 10 o’clock at night.[ ]

We are so tired. ______ we could take the day off tomorrow!