--- There is someone at the door. Who ______ it be? Is it the postman?
--- No, it ________ be him. It’s just seven o’clock. It’s too early.
A.may, can’t | B.will, won’t | C.may, mustn’t | D.must, may not |
--- There is someone at the door. Who ______ it be? Is it the postman?
--- No, it ________ be him. It’s just seven o’clock. It’s too early.
A.may, can’t | B.will, won’t | C.may, mustn’t | D.must, may not |