—Who is that young man ____?—He’s Jack, my brother.
—All the oil in the world will ______ some day.—Yeah. What shall we use at that time?
—How wonderfully Jim is swimming in the pool!—It ______ be Jim. I am not sure.
—Have you seen Jack?—Oh, yes, he walked ______ me just now.
—Are you pleased with the result of the exam?—Not at all. I can't have ______ .
—1 wore sports shoes to the party by mistake yesterday evening.—Oh, dear, you must be very ______ at the party!