试题 试卷
题型：单选题 题类：真题 难易度：普通
——Sorry. You ________ return it today.
——Sorry, you _________.
-- I'm not sure. I ______ go to the countryside to see my grandmother.
— No, you ________. You ________ clean it after school.
must, can, needn't, mustn't, have to
—OK, I get it.
—I'm afraid you___________.
试题篮
