Explanation

We generally use preposition by before a verb + ing (adding)

By adding means جمع کرکے

You can obtain the answer by adding the date of birth to this figure.

Explanation

If two nouns are joined by preposition, the noun on either side singular and the verb is also singular.

Explanation

"We use 'under' in the sentence 'They live under the same roof'

To indicate that the individuals referred to share the same living space or household.

'Under' in this context conveys the idea of proximity or being in close physical proximity to something

Explanation

Once he came to his senses, he understood the logic.

the meaning of coming to کے پاس آیا: to become conscious again after an injury or medical operation

"came to" is best to keep the meaning of the original sentence

We generally use to before senses. 

To is a preposition here.

ND13-07-2023

Explanation

A state imposes certain restrictions on its citizens.

ایک ریاست اپنے شہریوں پر کچھ پابندیاں عائد کرتی ہے۔

restrictions on: is the best suitable preposition here according to the statement of the question

 " on" preposition is used as a function word 

Explanation

Generally eagerness is followed by For.

He has no eagerness for anything. 

For is a preposition here.

Eagerness means شوق یا آرزو ہونا

Explanation

Here enter means to start/begin.

Here means شروع کرنا

Here she has already a business.

Therefore, preposition in should be used.

Explanation

Settle Down is a phrasal verb.

Settle Down means to adjust.

Settle down means پرسکون ہوجانا

The bride settled down very well.

Explanation

Desire is a noun here.

We generally use for after desire.

For is a preposition here. 

Desire for self-expression is one of the basic qualities of man.

Explanation

Generally contempt is followed by For.

Contempt means ذلت 

We have nothing but contempt for him.