Re-write these notices in the passive form:
1. you must not touch the computer.
2. you must write this in capital letters.
3. you are not to use this lift without permission.
4. you must not bring dogs into the shop.
5. you are to show your ticket to the driver.
6. you should leave wet coats in the cloakroom.
7. you must keep this window open.
8. you must not use the glue gun without permission.