Difficulty: Easy
Correct Answer: it was full steam
Explanation:
Introduction / Context:This question targets correct preposition use in a fixed phrase. We say “full of steam,” not “full steam,” when describing a container filled with steam. “Full steam” without “of” belongs to the idiom “at full steam,” which means “at maximum speed.”
Given Data / Assumptions:
Concept / Approach:Use “full of + noun” to express contents. Therefore, “it was full of steam” is correct. The current phrasing “full steam” misfires semantically and grammatically in this context.
Step-by-Step Solution:
Determine intended meaning: cooker contained steam.Choose correct pattern: “full of + noun.”Rewrite C: “it was full of steam.”Verification / Alternative check:
Alternative domain phrasing: “when it was under full steam pressure” (technical), but the simplest correction is “full of steam.”Why Other Options Are Wrong:
A, B, D are grammatically fine; D’s “burnt her hands” is acceptable in standard English.Common Pitfalls:
Confusing the idiom “at full steam” (speed) with “full of steam” (contents).Final Answer:it was full steam
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