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.

you need to pay about 1000$ to get out of a airport.

the answer is:  

he is voicing feelings shared by all humans regardless of race.

in paul laurence dunbar's poem "we wear the mask," he replicates the words mask and we to emphasize how people in general -not just black americans- hide their true feelings. he suggests the masks cover people's faces and eyes, which are the main parts that display their emotions. he also thinks people's pain conceal behind those masks, so that they cannot see reality and nobody is able to see one another's sorrow.