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Module: | Interrogative & Imperative Sentences

Q45: Consider the following statements regarding sentence transformations:

1. The active sentence "I have to do this difficult work" converts to the passive voice as "This difficult work has to be done by me."
2. The active sentence "She had to buy a new laptop" converts to the passive voice as "A new laptop had to be bought by her."
3. The active sentence "They have to cancel the scheduled flight" converts to the passive voice as "The scheduled flight has to cancel by them."

Which of the above statements is/are correct?
A
Only 1 and 2
B
Only 1 and 3
C
Only 2 and 3
D
All 1, 2, and 3
✅ Correct Answer: A
🎯 Quick Answer:
Statements 1 and 2 flawlessly transform infinitive obligations. Statement 3 fails to apply the passive infinitive formula.
Concept Definition: These examples test sentences indicating obligation or necessity, characterized by structures like "has to", "have to", or "had to" followed by a base verb.
Structural Breakdown: The active structure "have/has/had to + V1" converts to the passive structure "have/has/had to + be + V3". The auxiliary verb adjusts based on the singular/plural nature of the new subject.
Historical/Related Context: Infinitive obligations are straightforward but frequently test candidate focus.
Examiners will often change the tense (e.g., from "had to" to "has to") in the options to trick test-takers, a pattern heavily seen in early 2026 railway exams.
Causal Reasoning: Statement 3 is incorrect because it does not transform the active infinitive "to cancel" into a passive infinitive.
The sentence "The flight has to cancel" implies the flight is doing the cancelling.
The correct conversion is "The scheduled flight has to be cancelled by them."