Explanation

The six official languages of the United Nations.

Arabic,

Chinese,

English,

French,

Russian 

Spanish

English and French are the working languages of the United Nations Secretariat and are used in day-to-day professional exchanges.

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Founded: October 24, 1945, in San Francisco, California, United States

Headquarters: New York, New York, United States

Founders: United States, India, United Kingdom, Brazil, France

General Assembly is the largest organ of the United Nations organization, located in New York, USA. 

There are six main organs of UNO.

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Founded: October 24, 1945, in San Francisco, California, United States

Headquarters: New York, New York, United States

Explanation

Explanation

A header is a text that is placed at the top of a page, while a footer is placed at the bottom, or foot, of a page.

By default, on MS-Word the header or footer is printed on every page.

It can be changed in the Header and Footer menu.

Explanation

The Wakhan Corridor is a narrow strip of territory in Afghanistan, extending to China and separating Tajikistan from Pakistan and Kashmir.

The corridor was formed in 1893 and created the Durand Line.

The Wakhan Corridor is about 350 km long.

Explanation

The verb "bade" is the past tense of "bid," commonly used to express farewell.

In indirect speech, "Goodbye, my friends" is rephrased to show this form of bidding farewell.

Explanation

The comparative forms "faster" and "more comfortable" describe the improvement in speed and comfort of trains.

This usage aligns with correct grammar and context.

Explanation

Ten year ago, I had worked in Lahore.

دس سال پہلے میں نے لاہور میں کام کیا تھا۔

The past perfect tense "had worked" is used here to indicate an action that was completed before another point in time, in this case, ten years ago.

Explanation

The sentence is converted into passive voice by making "a strange noise" the subject, and "could be heard" retains the modal verb structure.

This aligns with proper grammar and meaning.

Explanation

We are not in a position to do all we promised to do.

ہم اس پوزیشن میں نہیں ہیں کہ وہ سب کچھ کر سکیں جس کا ہم نے وعدہ کیا تھا۔

In this sentence, "all" is the most appropriate option because it refers to the entirety of what was promised.

It is concise and grammatically correct in this context.

Explanation

In the passive voice, the subject (my bed) receives the action.

The verb structure changes to match the tense, making it "has been slept in."

This construction is appropriate for the present perfect tense.