Pity is generally followed by on.
The dolphin is a very intelligent animal.
Article 'the' is used before particular animals.
I planted a tree ? in my garden last year. The tree ? has now grown big.
Note 1: Use "A" or "An" to talk about a person or thing unknown to your listener.
Note 2: Use "The" to talk about a person known to your listener.
He promised to come but he did not means اس نے آنے کا وعدہ کیا لیکن آیا نہیں
Usually Article the is used before unique things like Sun, Earth, Moon etc.
This is a sentence of present indefinite tense.
First form of verb should be used.
The man I saw in the market was tall.
جس شخص کو میں نے مارکیٹ میں دیکھا وہ لمبا تھا۔
Generally article the is used before names of some particular professions.
Cauliflower is the right answer
Usually Article the is used for Nationalty.
Like, The Chinese, The Japanese, The Indian