Explanation

Correct Narration Change:

The original sentence ("Please don't go away," he said to me.) is an implored request (polite command).

In indirect speech, "said to" changes to "requested" (for polite pleas) or "told" (neutral).

"Don’t go away" becomes "not to go away" (infinitive structure in reported speech).

Explanation

These lines are from "The Character of a Happy Life" by Sir Henry Wotton, celebrating inner freedom and moral integrity.

The poem contrasts worldly ambitions with the peace of a virtuous, independent life ("free from service bands").

Explanation

Tin has the lowest melting point (~232°C) among.

• Zinc (~419°C)
• Gold (~1064°C)
• Lead (~327°C)

Explanation

Enzymes (e.g., ribosomes, polymerases) catalyze the assembly of proteins from amino acids during translation.

While enzymes assist in building various biomolecules, their most direct and universal role is in protein synthesis.

Explanation

Explanation

The cross product (A × B) is a vector whose magnitude is given by:

| A × B | = |A||B| sinθ

Its direction follows the right-hand rule.

Explanation

Arfa Abdul Karim Randhawa achieved the MCP title in 2004 at age 9, becoming the youngest ever at that time.

She held this record until 2008.

She represented Pakistan at global forums, even visiting Microsoft HQ in the U.S.

Explanation

The matter has been discussed with her teacher by her.

Rules of Voice Change (Present Perfect Tense):

Active: Subject (She) + has/have + past participle (discussed) + object (the matter).

Passive: Object (The matter) + has/have been + past participle (discussed) + by + subject (her).

Explanation

Gas: No definite shape or volume – Expands to fill any container.

Example: Oxygen, CO₂.

Solid: Fixed shape and volume (e.g., iron).

Liquid: Fixed volume, no fixed shape (e.g., water).

Explanation

This is a conditional sentence (Type 2), which uses "were" with "I" in hypothetical situations.

Correct sentence: "If I were you, I would have told him the truth."