Hidden words in sentences

There is one word hidden in each of these sentences, what are they related to?

1. I held the food to my lips.
2. The den in the jungle lives the lion.
3. High-quality biscuits are frequently requested.
4. Most of the cars in the nation are old.
5. Parents or kids are allowed to enter this place.
6. The water level is low, thus leading to shortage of water.
7. Chry sent the parcel to her mum.

Clue