If you want somebody to go window shopping with you, why not try calling Marie? —she ________ be home by now.

—I regret to say that I failed to rank first in the terminal exam.—Come on，nobody ________ win all the time.

 —Look at the boy running on the ground. Is it David?—It      be him. I saw him go to the teacher’s office just now.

— Must they clean and tidy the classroom now? — No, they      . It       after school in the afternoon.

Li Lei knows two foreign languages. He can speak _______ English______ French.