—Whose book is this?
—It _____ be Mary’s. Mo Yan is her favorite author.
—No, it ____ be hers, she never brings novels to school.
A.may; mustn’t | B.can; can’t | C.must; can’t | D.must; mustn’t |
—Whose book is this?
—It _____ be Mary’s. Mo Yan is her favorite author.
—No, it ____ be hers, she never brings novels to school.
A.may; mustn’t | B.can; can’t | C.must; can’t | D.must; mustn’t |