Imagery,"Hewas shocked to findouthewas leavinghisfriends,sohisvoice sounded muffled as ifbiscuitswere inhismouth

Meaning:

2. Hyperbole,"Tearing Grandmother breaksinto her full voice and soak up the applause of the guests at the end."
4. Onomatopoeia,"And Bruno liked nothing better than to get on board the banister at the top floor and slide his way through the house, making whooshing sounds as he went."
6. Hyperbole,"people strolling along and stopping to chat to each other or rushing around and saying they had no time to stop, not today, not when they had a hundred and one things to do."
8. Idiom, "I think the best thing to do would be to forget all about this and just go back home. We can chalk it up to experience," he added.
10. Metaphor, He ran into Gretel's room without knocking and discovered her placing her civilization of dolls on various shelves around the room.
12. Hyperbole,"I don't like it here," he said for the hundredth time.
14. Idiom,ifyou ask me, we're all in the same boat. And it's leaking.
16. Personification, instead he was wearing a white vest over his trousers and his hair flopped down over his forehead in exhaustion.
18. Simile,thenoise of a door slamming came from downstairs and reverberated through the house so loudly-like a gunshot- that Bruno jumped.
20. Metaphor,I was merely the blank wall to whom you addressed your words. As usual.
22. Personification, helping your country reclaim her pride after all the great wrongs that were done to her.
24. Onomatopoeia, Herr Liszt made a hissing sound through his teeth and shook his head angrily.
26. Idiom,lieutenant Kotler saying, "Don't worry, this one knows which side his bread is buttered on," and then laughing in a nasty way.
28. Onomatopoeia,he lost his grip of the bottle somehow and it fell crashing, glug-glug-glugging its contents out directly onto the young man's lap.
30. Simile,thenoise of a door slamming came from downstairs and reverberated through the house so loudly-like a gunshot- that Bruno jumped.
32. Metaphor,I was merely the blank wall to whom you addressed your words. As usual.
34. Personification, helping your country reclaim her pride after all the great wrongs that were done to her.
36. Onomatopoeia, Herr Liszt made a hissing sound through his teeth and shook his head angrily.
38. Idiom,lieutenant Kotler saying, "Don't worry, this one knows which side his bread is buttered on," and then laughing in a nasty way.
40. Onomatopoeia,he lost his grip of the bottle somehow and it fell crashing, glug-glug-glugging its contents out directly onto the young man's lap.