Billy had a great time the day before yesterday,是选didn't he ,不是hadn't he.尽量详细点,
问题描述：
Billy had a great time the day before yesterday,是选didn't he ,不是hadn't he.尽量详细点,
答
选 didn't he
因为 had a great time 中have 是实义动词,所以翻译疑问句中应该用助动词 did