Explanation

The correct sentence is: "Sarah looked at herself in the mirror before leaving."

"Herself" is the appropriate reflexive pronoun used when the subject and object are the same person.

Explanation

The correct prepositional phrase is "in all the big hospitals" to show location.

It clearly states where the rehabilitation centers have been established.

Explanation

The correct phrase is: "There is no substitute for hard work."

"Substitute" means a replacement, and the sentence implies hard work cannot be replaced.

Explanation

 The phrase “on duty” means اپنے فرض نبھانے میں مصروف

Explanation

Explanation

Delegate is a transitive verb.

Delegate means سونپنا یا سپرد کرنا

Everyone should be delegated duties and assignments according to his abilities

ہر ایک کو اس کی صلاحیتوں کے مطابق فرائض اور ذمہ داریاں سونپی جائیں

Explanation

She realized that she had not turned the lights off. 

She realized = Past Indefinite Tense

Not turned the lights off = Past Perfect Tense

Explanation

Something was happening: verb + ing (making noise)

Something happened: second form of a verb (entered) 

Explanation

This neighborhood looks a little run down and tatty these day.

یہ پڑوس اس دن تھوڑا سا رن اور ٹیٹی نظر آرہا ہے۔

"Run down" means in poor condition or neglected, which fits the context of a neighborhood looking worn out.

Explanation

The phrase "make out" means to understand or comprehend something.

In the given sentence, "make out" is used to express difficulty in understanding the lesson.