You       be hungry after the long walk. Help yourself to some cakes.

—Jack is not in the office at the moment—Oh, he ______ those who are going to take the driving test in an hour.

—Look! It________be the new woman manager. —It________be her.She has just left for Shanghai. 

--- ______ I bring you all the magazines right now?--- No, you don’t have to, but you ______ give them to me tomorrow.

—People find it hard to get across the river．—I think at least two bridges         over it．