| 1 | Sleep more and feel drowsy during the daytime. | |
| 2 | Son: I know, but I promise I won't be sleepy tomorrow. I work really hard. | |
| 3 | Not everyone who is sleepy at work is lazy. | |
| 4 | Frank:I know, but I promise I won' t be sleepy tomorrow. | |
| 5 | Eating lots of food and drink at holidays are probably the real cause of sleepiness. |