Explanation

Each human lung contains approximately 300 million alveoli, providing a large surface area for gas exchange.

These tiny air sacs help in the efficient exchange of oxygen and carbon dioxide in the lungs.

Explanation

The phrase "burst into tears" is a common expression meaning to suddenly start crying.

Burst into tears means آنسوؤں میں پھٹ گیا

Explanation

Refuted means تردید

Supported means تائید

Explanation

"The captain" renames or gives more information about "Sarfraz Ahmed," making it an appositive.

A noun in apposition provides extra details about another noun without changing the sentence structure.

Explanation

The preposition "on" is used to indicate that something is in contact with or attached to a surface.

The correct sentence is:

"The picture was hanged on the wall."

Explanation

A declarative sentence states a fact or provides information, as in "The Indus is the largest river in Pakistan."

It ends with a period.

A command (imperative).

A question (interrogative).

A strong emotion (exclamatory).

Explanation

The phrase "It was what you" suggests an indirect or reported speech structure, where "would" is commonly used for future-in-the-past situations.

"Would" is also used to indicate hypothetical or conditional scenarios.

Explanation

The sentence refers to yesterday, indicating a past event, so past simple tense is needed.

"Did not come" is the correct negative form of the past simple tense, as "did" already carries the past meaning.

Explanation

The verb "married" does not require a preposition when used directly with the object.

The correct sentence is:

"Aslam married Salman."

Explanation

"Who stands first" is a relative clause because it describes "the boy" using the relative pronoun "who."

Relative clauses provide additional information about a noun and usually begin with who, which, or that.