Respuesta :
B. “Have” is the correct answer. The sentence is in the past tense so you would not use “is” or “has”.
The answer is B. We know this because were is
Plural and are is present tense. The only thing that is past tense and pairs with the following clause is was.
Plural and are is present tense. The only thing that is past tense and pairs with the following clause is was.