Explanation

The poem "Lines from Endymion" is written by John Keats, a famous Romantic poet.

It begins with the well-known line: "A thing of beauty is a joy forever."

Explanation

The sentence is in past simple tense (did discourage) — passive form becomes was/were + past participle.

So, correct passive structure: "Why were they discouraged by you?"

Explanation

My sister said she walks to school while others go by bus.

The reporting verb is "said" and the sentence expresses a habitual action (present simple).

Present simple tense remains unchanged in indirect speech if the statement expresses a general truth or habit.

Explanation

Raak means امتحانات میں کسی نشان یا گریڈ تک

Grade means امتحانات میں کسی نشان یا گریڈ تک

Explanation

Essential means ایسی چیز جو بہت اہم ہے یا ضروری ہے

Necessary means ایسی چیز جو بہت اہم ہے یا ضروری ہے

Explanation

Accuracy means درستگی

Precision means صحت سے متعلق

Correctness means درستگی

Explanation

The subject "A lot of houses" is plural, so it takes "have" as the auxiliary verb.

Correct sentence: "A lot of houses have collapsed due to the earthquake."

Explanation

With "Does", we always use the base form of the verb — so "have", not "has".

Correct sentence: "Does anyone have a pencil I could borrow?"

Explanation

The phrase "never met him yesterday" is incorrect because "never" (implies at no time in life) and "yesterday" (refers to a specific past time) should not be used together.

Correct sentence: "You are wrong; I met him yesterday." or "You are wrong; I have never met him." (without "yesterday").

Explanation

In conditional or time clauses (e.g., starting with when, if, before, etc.), we use present tense instead of future tense even if referring to the future.

Correct sentence: "I will contact you when you come."