Q
Hard 1 Mark
English Conditional Sentences
Choose the sentence with no error.
Explanation
Both conditional connectors in this sentence — "unless" and "provided that" — correctly use present simple in their clauses, and "unless" avoids the double-negative trap of adding "doesn't."
Reference: Skoolyst English Grammar Guide , Page 6
Hint
When a sentence uses two different conditional connectors, check each one separately for the same tense and negative rules.