I must_______(ask)my teacher for it.用所给单词的适当形式填空
问题描述:
I must_______(ask)my teacher for it.用所给单词的适当形式填空
答
是用ask,must是情态动词后加原型,
I must_______(ask)my teacher for it.用所给单词的适当形式填空
是用ask,must是情态动词后加原型,