Explanation

Laugh is an intransitive verb.

Laugh at someone means کسی پر ہنسنا یا مذاق اڑانا 

Laugh is generally followed by at

Never laugh at the old persons بوڑھے لوگوں پر کبھی نہ ہنسو

Explanation

She has been working in a factory since 2007.

Words like, morning, evening, midnight, June 2014, etc. are generally followed by the preposition Since. 

Explanation

Whose is a possessive pronoun.

Use it when you're asking (or telling) to whom something belongs

SH16-8-2023

Explanation

Active Voice: The surface feels smooth.

Passive Voice: The surface is smooth when it is felt.

Active Voice: Roses smell sweat.

Passive Voice: Roses are sweat when they are smelt. 

Explanation

The correct preposition with "adjacent" is "to."

Correct sentence: "His house is adjacent to the mosque."

Explanation

 "Ali usually gets up early in the morning and goes to bed late at night."

We say "in the morning" for parts of the day.

We say "at night" for the nighttime.

 So the correct and natural usage is: in the morning, at night.

Explanation

"Will" is used to express future predictions or certainty, like weather forecasts.

So, "There will be heavy snow tomorrow" correctly predicts future weather.

Explanation

The complete idiom is: "Too many cooks spoil the broth."

It means that when too many people are involved in a task, especially without coordination, it can lead to poor results.

Explanation

The second form of verb is always used with in a sentence of past indefinite tense.

Walk, walked, walked

Explanation

The police must collect enough evidence to ensure his conviction.

پولیس کو اس کی سزا کو یقینی بنانے کے لیے کافی شواہد اکٹھے کرنے چاہئیں۔

Collect means gathering evidence systematically for a case.