Explanation

The phrase "You have turned off the lights when you leave".

جب آپ جاتے ہیں تو آپ نے لائٹس بند کردی ہیں۔

It implies that the action of switching off the lights should be completed before leaving a place.

Explanation

She has been playing the piano since she was five years old.

وہ پانچ سال کی عمر سے پیانو بجا رہی ہے۔

The correct answer is "Has been" because the sentence uses the present perfect continuous tense.

It indicates an action that started in the past and continues up to the present.

In this case, the action of playing the piano started when she was five and continues now.

Explanation

Where does Pervaiz  live

Explanation

 Was reading the book = Past Continuous Tense

میرا بھائی کتاب پڑھتے پڑھتے سوگیا۔

Explanation

Explanation

"Soporific" means causing sleepiness, so the audience would become "drowsy."

Explanation

This is one of the most important Invention of this century

Explanation

The only difference between the two flights is?

دونوں پروازوں میں فرق صرف اتنا ہے؟

We use 'Between' because it involves a comparison of two specific flights.

Between: Used for comparing two distinct items.

Among: Used for comparing three or more items.

Explanation

 After adjectives like "delighted", we often use "to + base verb".

"Delighted to see" is the correct form.

Explanation

• the air was clear and fresh in spite of all traffic
• ***
• the air was clear and fresh in spite of all traffic
• ***
• in the spite of the mean: even though there is something unpleasant or bad happening
• In spite of is a preposition. it is used for joining the clause
• ***
• in the above sentence, we use the word in spite of because they indicate something unpleasant or bad happing