Explanation

Laboratory means علم کیمیا کے امتحان کا مکان یا کارخانہ

Explanation

He told me that he had been working for the same company since 1960.

Direct speech: "I’ve been working..." (present perfect continuous)

Indirect speech: changes to past perfect continuous → "he had been working..."

"Since 1960" stays the same because it refers to a specific point in time.

Explanation

Imaginary means خیالی

Explanation

The correct sentence is: "Look at the flowers."

"Look at" is the correct phrasal verb used when directing attention toward something.

Explanation

A keyboard is a physical input device, so it is considered hardware.

It allows the user to interact with the computer by typing commands or data.

Explanation

Hectic means بہت مصروف یا افراتفری

Calm means پرامن اور مصروف نہیں

Explanation

Zarb-e-Kaleem is a philosophical poetry book of Allama Iqbal in Urdu.

It was published in 1936, two years before his death.

Explanation

The correct sentence is: "Don’t be late to school."

"Late to" is used when referring to specific places or events (e.g., late to school, late to class).

"Late for" is also commonly used, especially for events or appointments (e.g., late for a meeting).

Explanation

Negative imperative in passive voice uses: "Let + object + not be + past participle."

"Don’t mistrust" becomes "Let ... not be mistrusted."

Hence, "Let the sincere not be mistrusted" is correct.

Explanation

In the C.G.S system (Centimeter-Gram-Second), the unit of mass is gram.

This system uses centimeter for length and second for time.