—Whose book is this?
—It ________be Mary's. J. K. Rowling is her favorite writer.
—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. J. K. Rowling is her favorite writer.
—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 |