Replace the highlighted words in the sentence with the most appropriate set of words that best fit the context of the sentence. If the sentence is correct as it stands, select “No improvement required”.

The student’s (A) parachute attitude during the presentation made the teacher (B) blender and the class (C) telephoned at the lack of (D) radiators.

The correct answer is 'Option 3'.

Key Points

• Parachute (A) is contextually incorrect and meaningless in this sentence. The intended meaning refers to a lack of concern or seriousness, best conveyed by "indifferent."
• Blender (B) is a literal household appliance and completely irrelevant. The correct replacement is "annoyed," as it conveys the teacher’s natural reaction to careless behavior.
• Telephoned (C) is unrelated to any emotional or classroom reaction. A more logical and expressive choice is "laughed," indicating the class's likely reaction.
• Radiators (D) makes no contextual sense. The word "preparation" correctly highlights what was missing in the student’s performance.

Hence, the correct answer is 'Option 3'.

Correct Sentence: The student’s indifferent attitude during the presentation made the teacher annoyed and the class laughed at the lack of preparation.

Additional Information

• Option 1: “Humorous” and “giggled” might suggest a light mood, but do not match the tone of annoyance or seriousness expected in a classroom setting.
• Option 2: While “careless” and “frustrated” are suitable, “reacted” and “effort” are vague and lack precision in expressing the classroom reaction and what was lacking.
• Option 4: “Confident” contradicts the issue implied in the sentence. The words “murmured” and “discipline” don’t fit the core problem, which is lack of preparation.
• Option 5: “No improvement required” is incorrect because all highlighted words—“parachute,” “blender,” “telephoned,” and “radiators”—are out of context or nonsensical here.