Choose the option that best completes the gap(s).
The police claim that a number of stolen cars ....... recovered?
A
have been
B
has been
C
has being
D
have being
Verified Correct Answer: A.
Grammar & Contextual Explanation
When the phrase 'a number of' is used in a sentence, it is followed by a plural verb, hence 'have been' is the correct answer.
Source: Myschool Past Questions Archive (Record #12035)