Choose the correct option and rewrite the sentence according to the instruction given after each.
If the rain does not stop, Mariam will not be able to do the laundry. (Begin: Unless....)
Topic: Transformation — 'unless'
Try it
Pick an option and check your answer. The full worked answer is below either way.
Answer
(d) Unless the rain stops, Mariam will not be able to do the laundry..
UNLESS already means IF NOT, so the negative must be REMOVED when you convert: Original: IF the rain does NOT stop, she will not be able to... Unless: UNLESS the rain stops, she will not be able to... The second half stays exactly as it was.
Option (a) is the trap and the commonest error — it keeps the "does not", producing a DOUBLE NEGATIVE that reverses the meaning. "Unless the rain does not stop" says the opposite of what is intended.
Option (c) has the right idea but writes "the rain stop" instead of "stops" — a subject-verb agreement error. A singular subject takes the -s form. Option (b) swaps the two clauses into nonsense.
THE RULE: with "unless", one negative disappears. With "if not", it stays. Never both.
Unless the rain stops, Mariam will not be able to do the laundry..