This is not my area of expertise but as far as I understand we refer to a conditioned sound change if a phoneme when in a certain environment becomes another phoneme - there is a certain condition that propells the change. On the other hand we refer to an unconditioned sound change if all phonemes of, for example, two different kinds are merged into one phoneme - there is no condition as it happens in all instances, and ultimately there is a reduction in the number of phonemes as one is substituted for another.
One afternoon, an old man ordered in a nearby restaurant for breakfast.
He went inside, find a seat and sit comfortably.
Then one smiling waiter approached him and asked: "What's your order for this morning, sir?" The old man replied, "Can I have one rubbery egg and two slices of burnt toast, please?"
The waiter with his two brown eyes glow with awe, answered, "One rubbery egg and two slices of burnt toast? (with an emphasis on the word "rubbery and burnt") Was that correct sir?" "Yes, you just said it right", the man replied.
"Why on earth would you want such a dish?" asked the waiter.
"My wife was out of town and I missed her cooking." replied the old man.
"Oh! I see". the waiter answered with a smirk and walk back scratching his head.
I Am Almost Positive The Answer Is Exercise
Hope This Helped
16. A
17. C
18. B
19. D
20. A
21. D
22. D
