Do we/you usually write e-mails to each other on Saturday evening?
Do they have the same hobby?
Do Su Hai and Su Yang like listening to music after school?
Does Helen usually watch TV in the evening?
这种题很简单,看句子中的动词,给的是原形,句首就用Do；动词带s,句首就用Does;原先那个动词不管它原先什么形式,一律用原形跟在主语后面,最后记着用问号就可以了.