Spot the error in following sentence: The tissues of his body drew (A) tight (B) as if he was (C) standing at the center (D) of a vacuum.

Spot the error in following sentence: The tissues of his body drew (A) tight (B) as if he was (C) standing at the center (D) of a vacuum.

Explanation

The error is in "was" (C).

The correct sentence should use "were" to agree with the plural subject "he" (referring to "the tissues").