Mark the letter A, B, C or D to indicate the sentence that is BEST written from the words/phrases given.Câu hỏi I/ wish/ there/ not/ environmental/ problems/ city. A. I wish there won’t be environmental problems in our city. B. I wish there hadn’t environmental problems in our city. C. I wish there aren’t environmental problems in our city. D. I wish there weren’t environmental problems in our city.