Why Correct: The original sentence uses the past-tense reporting verb "expressed," so the direct-speech version must retain a past-tense reporting verb. "Said" matches that tense, and standard direct-speech punctuation places a comma before the opening quotation mark, exactly as in "My daughter said, \"I prefer History over English.\""
Distractor Analysis: "My daughter says \"I prefer History over English.\"" shifts the reporting verb to present tense, which contradicts the past-tense context of the original. "My daughter tells — \"I prefer History over English.\"" uses present tense "tells" and a dash instead of the required comma before the quotation. "My daughter told, \"I prefer History over English.\"" uses "told" without an indirect object; "told" requires a recipient (e.g., "told me"), whereas "said" can stand alone.
Takeaway: In indirect-to-direct conversion, the reporting verb must match the tense of the original reporting verb, and "said" is the only common reporting verb that does not require an indirect object; "told," "asked," and "ordered" all require one.

Why Correct: In indirect speech, 'will' backshifts to 'would', 'tomorrow' becomes 'the next day', and the first-person pronoun 'I' changes to 'he' to match the speaker. The reporting verb 'said' remains unchanged because no indirect object follows it.
Distractor Analysis: Keeping 'I' and 'will' unchanged fails to adjust the pronoun and tense to the reporting context. 'Told that' is ungrammatical because 'told' requires an indirect object (e.g., 'told me that'). Keeping 'will' without backshift and replacing 'tomorrow' with 'after today' are incorrect transformations; 'after today' is not a standard time expression in indirect speech.
Takeaway: In indirect speech, 'today' becomes 'that day', 'yesterday' becomes 'the previous day', and 'now' becomes 'then'.

Why Correct: In the passive interrogative, the object "the work" becomes the subject, and the agent is introduced by "by whom" at the start. The auxiliary "has" follows the subject, then "been done" completes the verb phrase: "By whom has the work been done?"
Distractor Analysis: "Who has been done the work?" keeps "who" as the subject and omits "by," producing an ungrammatical passive. "By whom has been done the work?" places the auxiliary before the subject "the work," breaking the required subject-auxiliary inversion. "Whom has done the work by?" uses "whom" as the subject and ends with a stranded preposition, both of which violate standard interrogative passive structure.
Takeaway: For interrogative "who" questions, the passive pattern is "By whom + auxiliary + subject + been + past participle," as in "Who wrote this book?" becoming "By whom was this book written?"

Why Correct: The original sentence states a future intention with the auxiliary verb "will" before the subject "I". To form a yes/no question, the auxiliary moves to the front, and the pronouns shift to match the new perspective: "I" becomes "you" and "you" becomes "me", yielding "Will you meet me?"
Distractor Analysis: The other formulations insert question words—"Where", "How", and "When"—that ask for specific information not present in the original statement. These wh-questions change the meaning from a simple confirmation to a request for details about location, manner, or time, which the original sentence does not provide.
Takeaway: A declarative sentence with an auxiliary verb (will, can, should, have) converts to a yes/no question by placing that auxiliary before the subject, without adding any interrogative word.

Why Correct: Universal truths remain in the present tense in indirect speech even after a past-tense reporting verb. 'Grass is green' states a general fact, so the indirect form keeps 'is' unchanged.
Distractor Analysis: The version with 'was' backshifts the tense, implying the fact held only at the time of speaking. The version with 'had been' uses the past perfect, suggesting the fact no longer holds. The version with 'will always be' adds a future-oriented qualifier that alters the original meaning.
Takeaway: Habitual actions and historical facts also stay in the present tense in indirect speech; for example, 'The teacher said that the Earth revolves around the Sun' keeps 'revolves' unchanged.

Why Correct: 'Tastes' is a stative verb expressing an inherent quality, so the passive transformation uses 'be + adjective + when + past participle'. 'Orange is sour when tasted' conveys that the orange possesses sourness at the moment of tasting.
Distractor Analysis: 'Orange is tasted sour' wrongly applies an action-passive form to a stative verb, implying an act of tasting rather than a quality. 'Orange is sour after tasting' introduces a temporal sequence that suggests the sourness appears only after the tasting event, which misrepresents the inherent nature. 'Orange is tasted as sour' uses a non-idiomatic construction; English does not pair 'tasted as' with an adjective complement in this context.
Takeaway: Other stative verbs like 'feel', 'smell', and 'look' follow the same passive pattern: 'The cloth feels soft' becomes 'The cloth is soft when felt', and 'The flower smells sweet' becomes 'The flower is sweet when smelled'.

Why Correct: A declarative sentence with the verb "is" converts to a yes/no interrogative by inverting the subject and the verb, producing "Is honesty the best policy?"
Distractor Analysis: "Is not honesty the best policy?" is a negative interrogative that implies a rhetorical assertion rather than a neutral question. "Is honesty not the best policy?" is grammatically correct but places the negation after the subject, making it less direct for a simple conversion. "Why is honesty the best policy?" is a wh-question that asks for a reason, not a direct conversion of the statement.
Takeaway: For sentences with the pattern "Subject + is + complement," the interrogative form places "is" before the subject, yielding "Is + subject + complement?"

Why Correct: The passive sentence 'The script is being written' uses the present continuous passive (is/am/are + being + V3). Converting to active voice requires making the doer the subject and using the present continuous active form (is/am/are + V-ing), giving 'They are writing the script'.
Distractor Analysis: 'The script will have to be written' remains passive voice with the modal 'will have to', so it does not change the voice. 'Write the script' is an imperative sentence, not a voice conversion. 'They have been writing the script' uses the present perfect continuous tense, which does not match the original present continuous tense.
Takeaway: The active voice of a present continuous passive sentence always uses the same tense as the original; the passive structure 'is/am/are being + V3' corresponds to the active 'is/am/are + V-ing'.

Why Correct: The declarative sentence specifies the meeting location as 'at the train station', so the interrogative that targets place uses the wh-word 'where': 'Where will you meet me?'
Distractor Analysis: 'When will you meet me?' asks about time, not place. 'How will you meet me?' asks about manner or means. 'Can't you meet me?' is a negative yes/no question about ability, not a direct conversion of the given statement.
Takeaway: Wh-words map to specific sentence elements: 'where' for place, 'when' for time, 'how' for manner, and 'why' for reason; converting a declarative to an interrogative requires selecting the wh-word that matches the element being questioned.