Explanation

Explanation

The terrorists have been setting off bombs in trains.

دہشت گرد ٹرینوں میں بم دھماکے کرتے رہے ہیں۔

The phrase "setting off bombs" is correct, as "set off" means to cause an explosion.

Explanation

Explanation

HIV (Human Immunodeficiency Virus) was first identified in 20 May 1983 by researchers Luc Montagnier and Françoise Barré-Sinoussi in France.

Their discovery linked HIV to AIDS, leading to significant advancements in understanding and managing the disease.

Explanation

You must attend to the lecture?

آپ کو لیکچر میں شرکت کرنی چاہیے؟

The correct preposition to complete the sentence is "to" – "You must attend to the lecture."

"Attend to" means to focus on or pay attention to something, which fits the context.

Explanation

چھوئی موئی ہونا محاورہ ہے، اس کا مفہوم بہت نازک اندام ہونا ہے۔

Explanation

• Agatha Christie is renowned as a prolific writer of mystery novels, particularly for her detective characters Hercule Poirot and Miss Marple.
• She is often referred to as the "Queen of Crime" and holds a Guinness World Record as the best-selling fiction author.

Additional Points:

• Her famous works include "Murder on the Orient Express" and "The Murder of Roger Ackroyd."
• Christie also wrote plays, with "The Mousetrap" being the longest-running play in history.

Explanation

"This story is replete with interesting incidents."

"یہ کہانی دلچسپ واقعات سے بھری پڑی ہے۔"

"Replete" means filled or abundant, often used to describe something that is rich or plentiful.

The correct phrase is "replete with", indicating that the story is filled or abundant with interesting incidents.

Explanation

By this time next year, I will have taken all my exams.

اگلے سال اس وقت تک، میں اپنے تمام امتحانات دے چکا ہوں گا۔

"Will have taken" is used for future perfect tense, indicating an action that will be completed by a specific time in the future.

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.