Is Tim a good boy?一般陈述句改成一般疑问句的方法是将助动词提前 谓语动词是be动词（is am are)将他们提前 若谓语是一般的动词,则按照时态用do/did提问 如 Tim likes shopping.Does Tim like shopping 若谓语为情态动词如can may 等 直接提前 如He can swim.Can he swim?