第15题: [单项选择]______ that a society like the National Society for the Prevention of Cruelty to Children is still needed in a civilized country A. How does it come B. How it comes C. How did it come about D. How did it come 参考答案:A 答案解析:首先应分析出句子的时态环境是现在时,所以应排除B、D。此句是疑问句,应将助动词does移至主语前,构成疑问句结构,因此只有A为正确答案。it是形式主语,that从句是实际主语。how does it