Sentence Correctionmedium · Past Paper
Identify the error: Unless you do not work hard, you will fail the exam.
AUnless you
Bdo not work hard
Cyou will
Dfail the exam
✓ Correct Answer: B — do not work hard
'Unless' itself means 'if not', so using 'do not' creates a double negative. It should be 'Unless you work hard'.
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