i Register
In some senses, knapsack is marked as archaic, US. Watch for register when choosing this word.
ADJ.
left, still
VERB + KNAPSACK
back, give, grabbed, looked, reached, taking, unzipped, using
KNAPSACK + NOUN
father, flashlight, it's, nancy, pillow, s, something, waterproof
PREP.
in, into, on, out, with