which book do you prefer?你更喜欢哪本书
which food do you prefer to eat?你更喜欢吃那种食物
compared to you ,who is taller?跟你相比,谁更高一点
compared to you ,who is younger than you?跟你相比,谁更年轻一点
when did you last brush your teeth?你最近一次刷牙是什么时候
when will your wash your clothes?你什么时候洗衣服,这个句子第一个your应该是you,这里不能用物主代词.
what present do you want for christmas 你希望收到什么样的圣诞礼物呢