Explanation

Generally sympathy is followed by for.

Sympathy means ہمدردی

I have no sympathy for him means مجھے اس کے لئے کوئی ہمدردی نہیں

Explanation

The secretary was promoted because of his outstanding performance.

promoted: raise (someone) to a higher position or rank.

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

ND13-07-2023

Explanation

The sentence is in Indirect Speech showing Past Time.

So, Past Perfect Tense will be used

Here, had come is the right usage.

Explanation

Pity is generally followed by on.

On is a preposition here.

Have pity on her means اس پر رحم کریں۔

Explanation

We generally use about with concerned.

About is a preposition here.

Concerned about something means کسی کے بارے میں فکرمند ہونا

He is very concerned about the economy. 

Explanation

Laugh at someone means کسی بندے پر ہنسنا

Laugh over means کسی بات پر ہنسنا

We all laughed over the affair. 

Explanation

Hinder from doing something means کسی کام سے روکنا

From is a preposition here. 

Explanation

Nurses look after the patients with love and carefully. incorrect 

Nurses look after the patients with love and care. Correct 

AGM 2101 23

Explanation

one should try one's best

کسی کو اپنی پوری کوشش کرنی چاہیے۔

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RY18012023

Explanation

We use preposition On before Foot.

On Foot means پیدل  

You can go on foot means آپ پیدل جاسکتے ہیں