I/ have never/ be/ more beautiful/ a waterfall/ before.4/15 I/ have never/ be/ more beautiful/ a waterfall/ before.I am have never a more beautiful waterfall before.I have never been to a more beautiful waterfall before.I have never be to a more beautiful waterfall before.I have never been a more beautiful waterfall before.Giải thíchĐáp án đúng: B Dịch: Tớ chưa bao giờ đến một thác nước đẹp hơn