IMO A
B,C,D unnecessarily use perfect tense
E uses present which is not correct as per the meaning of the sentence. It says until recently, so we are referring to something that has happened in past already hence were is the correct choice and A is the right answer.
B,C,D unnecessarily use perfect tense
E uses present which is not correct as per the meaning of the sentence. It says until recently, so we are referring to something that has happened in past already hence were is the correct choice and A is the right answer.
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