Murray was beginning to wonder if they should just give up and save themselves from all of the crouching and creeping around in the jungle.
What change, if any, should be made to sentence 15

its   c   : ) 0_  

voracity is the noun corresponding to the adjective voracious, which means (1) eager to consume a great amount of food, or (2) marked by an insatiable appetite. veracity is far more common than the rare voracity, so the latter is sometimes used in place of the former.

the unique function that the video specifically ascribes to sins near tunnels is "prohibiting certain cargo". tunnels have specific control signs such as minimum and maximum speed, the appropriate use of headlight and prohibited cargo. for your own safety it is important you understand the signs when approaching a tunnel.