1 . 这座古堡一定在火灾中被烧毁了，因为我们在它原来所在的地方看到的只有灰烬。
The ancient castle ________ ________ ________ ________ ________ in the fire, for we saw nothing but ashes where it used to be. (burn)

2 . 路是湿的。昨晚一定下雨了。(must have done)
The road is wet. ________ .