Answer:
"John hopes the sleeping bag will keep the den dark and the bear calm a bit longer."
Explanation:
John wants the bear to calm down, and he wants to keep the darkness within his refugee by covering the entrance with the sleeping bag, He is hiding from the bear because he wants to avoid being attacked by it.
Answer:
I was surprised by his sense of humour.
Explanation:
I don't have much idea about passive voice but I tried
Rebuttal
reply
come back
response
counterargument
<span>All human endeavors eventually disappear.</span>