单选题 In spoken English of some areas in the US, the "r" sounds at the end of the words______.
A. are dropped B. drop
C. are being dropped D. have dropped

【正确答案】 A
【答案解析】[解析] the "r" sound和drop应该是被动关系，表示字母“r”的发音“被略掉”，排除 B。句子为一般现在时，故选A。