题目内容：

情态动词的反意疑问句
这里只问can't的
can't的反问句应用can't后的动词的对应形式,可是用肯定还是否定呢?
EG.1.Your father can't be at home,--- ---
2.The students can't have finished their homework,--- ---?

优质解答

can’t（不可能,表示推测）根据can’t或的动词选择相应的形式.否定了就要肯定撒
1 is he
2 had they