9

Set 1: Words in Context (Beginner)

Explanation

Answer: A

PASSAGE

The experiment required _____ measurements, as even small errors could affect the final results.

Which choice completes the text with the most logical and precise word or phrase?

A. precise✓ Correct
B. quick
C. random
D. rough

Detailed Answer Explanation

Choice A is the best answer. "Precise" is correct because it means "exact and accurate." The context clues in the passage indicate that this meaning best completes the sentence logically.

Why others are wrong: B ("Quick" means "done in a short time," which doesn't fit the context.), C ("Random" means "without pattern or purpose," which doesn't fit the context.), D ("Rough" means "approximate; not exact," which doesn't fit the context.).