—_____ is it today?—It’s Tuesday.
—Excuse me,when are we going to have a picnic?—I’m not sure.Ask our monitor,please.He________know.
—Whose is the pencil box?—It________be Tom’s.Look at his name on the cover!
—Morning,class.Is________here?—No,sir.Tom is absent.
—Are those books________?—No,they are not mine.They belong to________.
—Do you hear the noise outside?—Yes.There must be some kids________outside.