Q
Easy 1 Mark
English Subject-Verb Agreement
The box of chocolates _____ left on the desk by the visiting guest.
Explanation
The true subject is 'the box' (singular), not 'chocolates', so the singular verb 'was' is correct.
Reference: Skoolyst English Grammar Series , Page 1
Hint
Identify the head noun before the prepositional phrase 'of chocolates'.