A short vowel in a closed syllable becomes a long vowel if a silent E is added at the end of the word.
Examples: tap - tape, pet - Pete, not - note, sit - site, cub - cube, gym - thyme.
Read these examples in sentences:
1. We listened to telephone taps on a tape recorder.
2. Nan gave a new pet to Pete.
3. I did not write this note.
4. Do not sit at the construction site.
5. I found a cub in a cube.
6. We found some thyme behind the gym.