—Listen! There is a knock on the door. Who _____ it be?
—It must be Jack. Just now I sent for him.
A.shall | B.can | C.must | D.might |
推荐套卷
—Listen! There is a knock on the door. Who _____ it be?
—It must be Jack. Just now I sent for him.
A.shall | B.can | C.must | D.might |