1 Answers
Answer: have
Explanation: After “A number of,” a plural noun and plural verb are used, but after “The number of,” a plural noun and singular verb are used.
Structure:
★ A number of + Plural noun + plural verb
★ The number of + plural noun + singular verb
In the above sentence, after “A number of,” there is a plural noun, so a plural verb will be used. Since it’s in the passive voice, the answer will be “have.”