I think the secret is that the robin built a nest on the sweet cherry-tree and when the little birds fly about and leave the nest, you can see the nest the robin built on the sweet cherry-tree, thus the whole secret will be out is the birds fly about and leave.
Answer:
Because they think that the hole is their home/nest.
Explanation:
The boy is stirring the pot slowly.
The correct option is HARD PLEASURE.
An oxymoron refers to a compound word (two words written together) whose meaning are contradictory to each other. The two words that are used together in oxymoron usually have completely opposite meaning and authors usually use it to engage the interest of the readers. For instance in the correct option mentioned above, hard and pleasure has opposite meanings. Other examples of oxymoron are: same difference, bitter sweet, alone together, open secret, original copy, etc.