Select the sentence that is grammatically correct:

The correct answer is Option (2) → Unless the rain stops in the next hour, the final will be put off till Monday.

“Unless” means “if not”:

• “Unless” already has the idea of “not” in it. So no “not” is added after it.
• “Unless the rain stops” means “If the rain does not stop”.

Why the Other Options are Incorrect?

Option 1: The porter carried all our luggages to the coach in one trip. — Incorrect. “Luggage” has no plural form. It is always used as a singular noun.
Corrected: The porter carried all our luggage to the coach in one trip.

Option 3: The guests reached to the venue an hour late because of the traffic jam. — Incorrect. “Reach” takes the place directly after it, with no “to”.
Corrected: The guests reached the venue an hour late because of the traffic jam.

Option 4: My younger sister can able to recite all the multiplication tables. — Incorrect. “Can” and “able to” mean the same thing, so only one of them is used.
Corrected: My younger sister can recite all the multiplication tables.