Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.Câu hỏi concert hall/ so crowded/saw/ heard/ nothing. A. The concert hall was too crowded that we saw and heard nothing. B. The concert hall was so crowded that we saw and heard nothing. C. The concert hall was crowded enough so we saw and heard nothing. D. The concert hall was such crowded that we saw and heard nothing.