（ ）constantly pick up your hands to guide him?

（ ）constantly pick up your hands to guide him?
A、Must you to
B、Have you to
C、Do you have to
D、Do you must
【正确答案】：C
【题目解析】：考察情态助动词的一般疑问句式。Must的一般疑问句为：Must+主语+动词原形；have to 为半情态动词，其一般疑问句：Do+主语+have to.