Fill in the given words to complete the sentences

• cold
• hard
• dry
• clear
• blind
• quick

1. After walking in the freezing rain, her feet were as
   [ ] as ice.
2. Jack is not a very compassionate person; he's as
   [ ] as nails.
3. The leaves are as
   [ ] as a bone and break into powder when you touch them.
4. The water in the ocean is as
   [ ] as crystal.
5. We could hardly see anything in the cave, we were as
   [ ] as bats.
6. When the pickpocket stole her wallet; he was as
   [ ] as lightning.